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ET 150
Exam 1 Study Guide
Written Test Learning Objectives
To score well on this section of the exam, you should be able to:
1.)
2.)
3.)
4.)
5.)
6.)
7.)
Identify and list the parts of an atom.
State the law of charges.
Explain how the valence shell affects electron movement in atoms.
List three examples of materials that are good conductors.
List three examples of materials that are good insulators.
List two examples of materials that are semiconductors.
Compare and contrast the conventional and electron flow representations of electric
currents.
8.) Define potential energy.
9.) List two examples of potential energy.
10.) Define kinetic energy.
11.) List two examples of kinetic energy.
12.) Define electric potential (voltage).
13.) Identify two symbols used to represent voltage.
14.) Identify the units used to measure voltage.
15.) Define electric current.
16.) Identify the symbol used to represent current in electric circuits.
17.) Identify the units used to measure electric currents.
17.) Compare and contrast Ac and Dc voltages.
18.) Define electric power.
19.) Define electric power in terms of voltage and current.
20.) Identify the symbol used for electric power.
21.) Identify the units used to measure electric power.
22.) Identify the schematic symbol for a resistor
23.) Identify the symbol used for resistance
24.) Decode a resistor value give the resistor color bands and a code table.
25.) Identify the units used to measure resistance.
25.) Identify the schematic symbol for both polarized and non-polarized capacitors.
26.) Identify the units used to measure capacitance.
27.) Identify the symbol used for capacitance.
28.) Identify the schematic symbol used for both iron and air core inductors.
29.) Identify the symbol used for inductance.
30.) Identify the basic units used to measure inductance.
31.) Identify the schematic symbols for diodes, photo diodes, LEDs and Zener diodes
32.) Indentify the schematic symbols of PNP and NPN transistors.
33.) Write the three forms of Ohm’s law using the correct symbols.
34.) Given two numerical values of the three: voltage, current, and resistance, compute
the third using Ohm’s law.
35.) List three characteristic of a series circuits.
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36.) Find the current value in a series Dc circuit by measuring voltage and applying
Ohm’s law.
37.) Given a voltage divider circuit with known source voltages and resistor values, find
the output voltage using the design formula.
38.) Simplify series resistors into a single equivalent resistor.
39.) List three characteristics of a parallel electric circuit.
40.) Given a circuit with a know source voltage and resistor values, find the current in a
branch using a voltmeter reading and Ohm’s law.
41.) Simplify parallel resistors into a single equivalent value.
42.) Explain the differences between primary and secondary batteries
43.) List the parts of a battery cell.
44.) Explain the difference between a battery and a battery cell.
45.) State the law of magnetic attraction and repulsion.
46.) Explain how to make an electromagnet
47.) Identify the schematic symbol for and Ac source.
48.) Identify the schematic symbols of both air and iron core transformers.
49.) Identify the basic controls on the DC power supplies used in lab.
50.) List three things found in electronic component data sheets.
51.) Identify pin 1 on and IC package.
52.) Given an IC package connection diagram, identify pin function.
53.) List three voltage measures used with Ac waveforms.
54.) Given a peak-to-peak voltage measurement of a sine wave, find its peak and rms
values.
55.) Identify the period and frequency of a Ac waveform by examine a plot of the
voltage.
56.) Define phase shift between two Ac waveforms.
Lab Practical Necessary Skills
To score well on this section of the exam, you should be able to:
1.)
2.)
3.)
3.)
4.)
5.)
6.)
7.)
Connect the Dc power supplies located in the lab to a circuit and set a specified
voltage.
Identify resistor values and tolerance using the color code.
Measure resistor values using the DVMs located in the lab
Assemble a series circuit from a given schematic diagram on a solderless
experimenter’s board using resistors and hookup wire.
Measure and record the voltages across all components
Measure the current in the series circuit using the DVM located in the lab.
Assemble a parallel circuit using resistors and hookup wire on a solderless
experimenter’s board given a schematic diagram.
Measure the currents through and voltages across all components.
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guide111.docx