Download 1 TRAINING SUPPORT PACKAGE (TSP) CF631R42 Series Circuits

TRAINING SUPPORT PACKAGE (TSP)
TSP Number
CF631R42
TSP Title
Series Circuits
Task Number(s)
/ Title(s)
Effective Date
01 Oct 1999
Supersedes
TSP(s)
TSP Users
Any accredited TASS Battalion and the Army Ordnance Center and School.
Proponent
The proponent for this document is ORDNANCE SCHOOL.
Comments /
Recommendations
Send comments and recommendations directly to:
Foreign
Disclosure
Restrictions
This product has been reviewed by the product developers in coordination with the
Fort Lee foreign disclosure authority. This product is releasable to military
students from all authorized requesting foreign countries without restrictions.
Commander, United States Army Combined Arms Support Command
Training Directorate, Ordnance Division
401 1st Street
Suite 227
Fort Lee, VA 23801-1511
1
PREFACE
Purpose
This Training Support Package provides the instructor with a standardized lesson
plan for presenting instruction for:
2
This TSP
Contains
TABLE OF CONTENTS
PAGE
Preface ............................................................................................................................................. 2
Lesson
Section I Administrative Data ..................................................................................... 4
Section II Introduction.................................................................................................. 7
Terminal Learning Objective - Identify a Series Circuit. .......................... 7
Section III Presentation ................................................................................................ 9
Section IV Summary................................................................................................... 13
Section V Student Evaluation .................................................................................... 14
Appendix A Viewgraph Masters.................................................................................................... 15
Appendix B Practical Exercises and Solutions ............................................................................. 17
3
CF631R42 version TATS / Series Circuits
01 Oct 1999
SECTION I.
All Courses
Including This
Lesson
ADMINISTRATIVE DATA
Course Number
Course Title
091-52D10
091-63J10
Power Generation Equipment Repairer
Quartermaster/Chemical Equipment Repairer
Task(s)
Taught(*) or
Supported
Task Number
Task Title
Reinforced
Task(s)
Task Number
Task Title
Academic
Hours
The academic hours required to teach this TSP are as follows:
IDT
Hours/Methods
1.0 / Conference / Discussion
1.0 / Practical Exercise (Performance)
.0
.0
Test
Test Review
Total Hours:
Test Lesson
Number
Prerequisite
Lesson(s)
Hours
Testing: 2
Review of
Test Results: 0.5
Lesson Number
CF631R37
CF631R38
CF631R39
CF631R40
CF631R41
Clearance
Access
2.0
Lesson No.
Description
CF631R45
Job Knowledge Test
Lesson Title
Elements of Electricity
Magnetism
Electrical test, Measurement and Diagnostic Equipment
(TMDE)
Electrical Safety/ Protection Devices
Ohm's Law
Security Level: Unclassified
Requirements: There are no clearance or access requirements for the lesson.
4
References
Number
FM 11-60
FM 11-62
TM 9-8000
Title
Date
Communications
Electronics
Fundamentals: Basic
Principles, Direct
Current
CommunicationsElectronics
Fundamentals: Solid
State Devices and
Solid State Power
Supplies. 30
September 1983.
Principles of
Automotive Vehicles
08 Nov 1982
Additional
Information
30 Sep 1983
25 Oct 1985
Student Study
Assignments
Make assignments so as to allow sufficient time for the students to complete the
assignments by the desired due date. Explain assignments and provide due date
and arrangements for collecting and providing feedback on the assignments.
Instructor
Requirements
Instructor must be MOS qualified and instructor certified IAW TRADOC REG 35118.
Additional
Support
Personnel
Requirements
None
Equipment
Required
for Instruction
Name
Materials
Required
Quantity
None
INSTRUCTOR MATERIALS:
CHalkboard w/chalk
Overhead projector
VGT CF631R42 001 through 010
STUDENT MATERIALS:
BK & S Electrical Workbook
FM 11-60
FM 11-62
TM 9-8000
Classroom,
Training Area,
and Range
Requirements
CLASSROOM, GEN PURPOSE, 1500SF, 20PN
5
Expendable
Ammunition
Requirements
Name
Student Qty
Misc Qty
Instructional
Guidance
NOTE: Before presenting this lesson, instructors must thoroughly prepare by studying this
lesson and identified reference material.
None
Ensure students have BK&S Electrical Workbook.
During this lesson, the instructor will guide the students through a discussion on
Series Circuits.
Proponent
Lesson Plan
Approvals
Name
Rank
6
Position
Date
SECTION II.
INTRODUCTION
Method of Instruction: Conference / Discussion
Instructor to Student Ratio is: 1:12
Time of Instruction: 0 hrs 5 mins
Media: Group-paced Instruction
Motivator
During your last lesson, Ohms Law, you learned that current in a circuit is directly
proportional to the voltage. You also learned that the current in a circuit is
inversely proportional to the resistance. We proved this statement to be true, by
applying Ohms Law. Before you can use Ohms Law any further, you must
understand the type of circuit you are working with. You must know the laws that
apply to voltage, current, and resistance in a series circuit. Your knowledge of
series circuits could mean the difference between a piece of equipment being
operational or nonoperational.
Terminal
Learning
Objective
NOTE: Inform the students of the following Terminal Learning Objective
requirements.
At the completion of this lesson, you [the student] will:
Action:
Identify a Series Circuit.
Conditions:
In a classroom, given instruction on identification of a series circuit;
explanation of Ohm's Law applied to series circuits; measurement
and computation of voltage, current, and resistance in a series
circuit.
Standards:
IAW applicable references.
Safety
Requirements
Incidental to Army operations and activities, all operations must provide for public
safety, safe and healthful work places, procedures and equipment. Observe all
safety precautions when using lifting devices and handling heavy parts. Observe
all safety and/or environmental precautions regarding electricity, radiation, radio
frequency, fuel lubricants, high pressures, and refrigerants. Provide ventilation for
exhaust fumes during equipment operation and use hearing protection when
required IAW AR 385-10, The Clean Air Act (CAA), CAA amendments, National
Ambient Air-Quality Standards, and the OSHA Hazard Communication standard.
Risk
Assessment
Level
Low
Environmental
Considerations
All operations will conform to the Army Environmental Policy, TC 5-400 (Unit
Leader's Handbook for Environmental Stewardship), Local, state and federal
environmental policies, AR 385-10, the Clean Air Act (CAA), CAA amendments,
National Ambient Air-Quality Standards (NAAQS), as well as OSHA Hazard
Communication Standard for Industry, 29 CFR, part 1910.
Evaluation
In lesson CF631R45 you, the student, will have 2.0 hours to take a job knowledge
test on the material presented in this lesson.
7
test on the material presented in this lesson.
Instructional
Lead-In
We are now ready to begin our instruction on Series Circuits.
8
SECTION III.
1.
PRESENTATION
Learning Step / Activity 1. Instructor will lead in a discussion on Series Circuits.
Method of Instruction:
Instructor to Student Ratio:
Time of Instruction:
Media:
Conference / Discussion
1:12
15 mins
Group-paced Instruction
NOTE:
Instructor will display VGT CF631R-001. Refer students to follow
Along in BK&S Electrical Workbook, chapter 6.
a. A basic electric circuit has a complete path through which electrons can flow
from the negative terminal of the voltage source, through the connecting
wires, through the load and back to the positive side of the voltage source.
b. A series circuit is an arrangement of electrical devices connected so that the
total current must flow through all the devices; electrons have only one path
to travel from the negative terminal to the positive terminal
(1) Series Connected Voltages
NOTE:
Instructor will display VGT CF631R-002.
a. All electric circuits require a voltage source.
b. One source for a direct current is a cell or battery.
c.
The arrangement of the cells in a circuit depends on the load
requirements of voltage and current. If the voltage must be high,
cells are connected in series.
1) Effect of series voltages
NOTE:
Instructor will display VGT CF631R-003 through VGT CF631R-005.
a. According to Ohm’s Law, current in an electric circuit is
directly proportional to the voltage of the circuit.
b. If the resistance is kept constant and the voltage is
increased, the current will increase in proportion to the
voltage.
c.
decrease.
If the voltage is decreased, the current will also
(2) Series Connected Resistances.
NOTE:
Instructor will display VGT CF631R-006.
9
a. An electric circuit will have some type of load.
b. The load may be a resistor, a lamp, a heater, a motor or any other
type of appliance.
c.
When resistors are connected in series, the same current flows
through each resistor.
1) Effects of Changing Resistance
NOTE:
Instructor will display VGT CF631R-007 through VGT CF631R-010.
(a) According to Ohm’s Law, the current in an electric circuit is
inversely proportional to the resistance of the circuit.
(b) If the voltage is kept constant and the resistance is
increased, the current will decrease.
(c) If the resistance is decreased, the current will increase.
NOTE:
Briefly summarize main teaching points.
NOTE:
Conduct a check on learning and summarize the learning activity.
2.
Learning Step / Activity 2. Instructor will lead a discussion on mathematically computing values
of voltage, current, and resistance while applying Ohm's Law to Series Circuits.
Method of Instruction:
Instructor to Student Ratio:
Time of Instruction:
Media:
Conference / Discussion
1:12
25 mins
Group-paced Instruction
a. Analysis of a Series Circuit.
(1) If a circuit is designed so that current flow has only one possible path ,
the circuit is called a series circuit.
(2) By carefully tracing the connections of each battery, resistance and
conductor, it can be determined that the total current must flow through
each device.
(3) In analyzing a series circuit, Ohm’s Law, the power formula and laws for
series circuits are used as required.
NOTE:
Instructor will draw a series circuit on chalkboard and explain the
methods to calculate voltage, current, resistance and power using
Ohms Law.
10
a. Laws for voltage.
1) In a series circuit, the total voltage is equal to the sum of the
individual voltage sources.
Et = E1 + E2 + E3
2) In a series circuit, the sum of the voltage drops across the
individual resistances is equal to the total voltage.
Et = Er1 + Er2 + Er3
NOTE:
Instructor will explain that voltage drop is the loss of electrical
pressure as a current flows through a resistance. Simply put, it is the
amount of voltage required to push a certain amount of current
through a certain amount of resistance.
b. Law for Resistance.
1) In a series circuit, the total resistance is equal to the sum of the
individual resistances.
Rt + R1 + R2 + R3
c.
Law for Current.
1) In a series circuit, the same amount of current flows in all parts of
the circuit and is equal to the total voltage (Et) divided by the total
resistance (Rt).
I = Et / Rt
d. Laws for Power.
1) In a series circuit, the total power supplied is equal to the sum of
the power supplied by the individual voltage sources.
Pt = Pr1 + Pr2+ Pr3
2) In a series circuit, the total power supplied is equal to the sum of
the power supplied by the individual voltage sources.
Pt = P1 + P2 + P3
NOTE:
Briefly summarize main teaching points.
11
NOTE:
Conduct a check on learning and summarize the learning activity.
3.
Learning Step / Activity 3. Students will complete a practical exercise on Series Circuit
problems.
Method of Instruction:
Instructor to Student Ratio:
Time of Instruction:
Media:
Practical Exercise (Performance)
1:12
1 hrs
Group-paced Instruction
Refer to practical exercise section in this lesson and Electrical Workbook for
procedures.
NOTE:
Conduct a check on learning and summarize the learning activity.
12
SECTION IV.
SUMMARY
Method of Instruction: Conference / Discussion
Instructor to Student Ratio is: 1:12
Time of Instruction: 0 hrs 5 mins
Media: Group-paced Instruction
Review /
Summarize
Lesson
During this lesson you have been taught Series Circuits.
NOTE:
Make sure you repeat the terminal learning objective of the lesson.
Check on
Learning
Determine if the students have learned the material presented by soliciting student
questions and explanations. Ask the students questions and correct
misunderstandings.
NOTE:
Instructor may explain how the information learned in this lesson will be applied to
future lessons. Ask students the following questions:
Q: How many paths does current have to flow in a series circuit?
A: One path for current to flow.
Q: What happens to current in a series circuit?
A: Current remains the same in all parts of a series circuit.
Q: Ohms law states that current is directly proportional to the ----?
A: Voltage
13
SECTION V.
STUDENT EVALUATION
NOTE: Describe how the student must demonstrate accomplishment of the TLO
standard. Refer student to the Student Evaluation Plan.
Testing
Requirements
The test will be administered during the lesson CF631R45. You (the student) will
have two hours to take a written test on this lesson and other lessons covered in
this annex with references, but without assistance. You must achieve a minimum
score of 70%.
Refer student to the Student Evaluation Plan.
NOTE: Rapid, immediate feedback is essential to effective learning. Schedule
and provide feedback on the evaluation and any information to help answer
students' questions about the test. Provide remedial training as needed.
Feedback
Requirement
Schedule and provide student feedback on the evaluation and any information to
help answer students’ questions about the test.
Provide remedial training as needed.
14
VIEWGRAPHS FOR LESSON 1: CF631R42 version TATS
Learning Step 1
VGT CF631R42, Series Circuits
A.
1.5 v
1.5 v
1.5 v
1.5 v
6.0 v
B.
SERIES CONNECTED VOLTAGES
VGT CF631R42-2
A-15
A-16
PRACTICAL EXERCISE SHEET 1
Title
Series Circuits
Lesson
Number/Title
CF631R42 version TATS / Series Circuits
Introduction
Motivator
Terminal
Learning
Objective
During your last lesson, Ohms Law, you learned that current in a circuit is directly
proportional to the voltage. You also learned that the current in a circuit is
inversely proportional to the resistance. We proved this statement to be true, by
applying Ohms Law. Before you can use Ohms Law any further, you must
understand the type of circuit you are working with. You must know the laws that
apply to voltage, current, and resistance in a series circuit. Your knowledge of
series circuits could mean the difference between a piece of equipment being
operational or nonoperational.
NOTE: Inform the students of the following Terminal Learning Objective
requirements.
At the completion of this lesson, you [the student] will:
Action:
Identify a Series Circuit.
Conditions:
In a classroom, given instruction on identification of a series circuit;
explanation of Ohm's Law applied to series circuits; measurement
and computation of voltage, current, and resistance in a series
circuit.
Standards:
IAW applicable references.
Safety
Requirements
Incidental to Army operations and activities, all operations must provide for public
safety, safe and healthful work places, procedures and equipment. Observe all
safety precautions when using lifting devices and handling heavy parts. Observe
all safety and/or environmental precautions regarding electricity, radiation, radio
frequency, fuel lubricants, high pressures, and refrigerants. Provide ventilation for
exhaust fumes during equipment operation and use hearing protection when
required IAW AR 385-10, The Clean Air Act (CAA), CAA amendments, National
Ambient Air-Quality Standards, and the OSHA Hazard Communication standard.
Risk
Assessment
Level
Low
Environmental
Considerations
All operations will conform to the Army Environmental Policy, TC 5-400 (Unit
Leader's Handbook for Environmental Stewardship), Local, state and federal
environmental policies, AR 385-10, the Clean Air Act (CAA), CAA amendments,
National Ambient Air-Quality Standards (NAAQS), as well as OSHA Hazard
Communication Standard for Industry, 29 CFR, part 1910.
Evaluation
In lesson CF631R45 you, the student, will have 2.0 hours to take a job knowledge
test on the material presented in this lesson.
B-17
Instructional
Lead-In
We are now ready to begin our instruction on Series Circuits.
Resource
Requirements
INSTRUCTOR MATERIALS:
CHalkboard w/chalk
Overhead projector
VGT CF631R42 001 through 010
STUDENT MATERIALS:
BK & S Electrical Workbook
FM 11-60
FM 11-62
TM 9-8000
Special
Instructions
Procedures
Instructor will instruct student to complete the practical exercise in BK&S Electrical
Workbook, chapter 6, pg 6-6. Inform students this PE is designed to ensure all
students understand series circuits.
Instructor will use CF631R42, Suppl to check the student's work.
Feedback
Requirements
B-18
SOLUTION FOR
PRACTICAL EXERCISE 1
CF631R42
SUPPL 1
1 hour
ANSWER KEY
Answer
1.
24v
2.
10.5v
3.
5 ohms
4.
Et = 24v
It = 4a
Rt = 6 ohms
Pt = 96 watts
5.
Et = 18v
It = 4a
Rt = 4.5 ohms
Pt = 72 watts
6.
Et = 36v
It = 2.4a
Rt = 15 ohms
Pt = 86.4 watts
7.
Et = 60v
It = 2a
Rt = 30 ohms
Pt = 120 watts
B-19
8.
Et = 90v
It = 4.5a
Rt = 20 ohms
Pt = 405 watts
9.
Et = 600v
It = 10a
Rt = 60 ohms
Pt = 6000 watts
10.
Et = 24v
It = 2.4a
Rt = 10 ohms
Pt = 57.6 watts
11.
Et =48v
It = 4.8a
Rt = 10 ohms
Pt = 230.4 watts
12.
Et = 60v
It = .75a
Rt = 80 ohms
Pt = 45 watts
13.
Et = 300v
It = 10a
Rt = 30 ohms
Pt = 3000 watts
B-20
14.
Et = 60v
It = 2a
Rt = 30 ohms, R1 = 10 ohms, R2 = 10 ohms, R3 = 10 ohms.
Pt = 120 watts
15.
Et = 30v
It = 1.5a
Rt = 20 ohms, R1 = 5 ohms, R2 = 10 ohms, R3 = 5 ohms.
Pt = 45 watts
B-21