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Chapter 6 – Parallel Circuits
Chapter 6 – Parallel Circuits

...  The current divider rule (CDR) is used to find the current through a resistor in a parallel circuit. General points:  For two parallel elements of equal value, the current will divide equally.  For parallel elements with different values, the smaller the resistance, the greater the share of inp ...
Low-Field Magnetic Sensing with GMR Sensors
Low-Field Magnetic Sensing with GMR Sensors

Code - Dr. Jaafar Jantan
Code - Dr. Jaafar Jantan

... 7.1 Magnetic field lines of permanent magnets 7.2 Magnetic force that a magnetic field exerts on a moving charges 7.3 Motion of a charged particle in a magnetic field 7.4 Motion of charges in magnetic & electric fields 7.5 Mass spectrometer & velocity selectors 7.6 Force on a current-carrying conduc ...
Solenoid Testing and
Solenoid Testing and

Physics 1304: Lecture 4 Notes
Physics 1304: Lecture 4 Notes

... • To determine the self-inductance L, we need to determine the flux B which passes through the coils when a current I flows: L  B / I. • To calculate the flux, we first need to calculate the magnetic field B produced by the current: B = 0(N/l)I • ie the B field is proportional to the number of t ...
Instruction manual
Instruction manual

... Do not measure Frequency on high voltage (>1000V) to avoid electrical shock hazard and/or damage to the instrument. Frequency is the number of cycles a voltage or current signal completes each second. The Meter can measure Frequency or Duty Cycle while making either an AC Voltage or AC Current measu ...
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File

Tuesday, June 21, 2016 - UTA HEP WWW Home Page
Tuesday, June 21, 2016 - UTA HEP WWW Home Page

chapter 09
chapter 09

ElectroWorks - The NEED Project
ElectroWorks - The NEED Project

Ohm`s Law Lab
Ohm`s Law Lab

SYLLABUS CLASS-VIII - e-CTLT
SYLLABUS CLASS-VIII - e-CTLT

... 1.Don’t remove a plug from a power point by pulling on the cord; pull the plug instead. 2. Never plug adaptors into adaptors and avoid using adaptors filled with plugs where possible. 3. Switch off electrical items that are not in regular use at the plug and ensure that when we are away from the hou ...
Word 2000 format
Word 2000 format

... Since the 1930s, industry standards for moving coil meters have always required that the voltage drop across the meter at full scale deflection (FSD) is 100 millivolts. As a consequence, standard meter specifications emerged, such as 1mA FSD with 100 ohms internal resistance, and if one purchases sa ...
magnetizing current effect minimization in current transformers
magnetizing current effect minimization in current transformers

... U2 – voltage drop on R1 resistor caused by i2 secondary current flow, U0 – voltage drop on R2 resistor caused by io magnetizing current flow. Magnetizing current io influence is being eliminated in the output which in effect gives very precise result of the transformation. In effect i1 current is eq ...
Chapter 13
Chapter 13

Chapter 2
Chapter 2

... current will be high if resistance is low, or current will be low if resistance is high. If voltage is too high, current will be high. • Current - is affected by either voltage or resistance. If the voltage is high or the resistance is low, current will be high. If the voltage is low or the resistan ...
Study Unit Electrical Fundamentals
Study Unit Electrical Fundamentals

... negative) strongly attract each other and try to balance each other out. Because of this attraction, whenever too many electrons are in one place, the electrons will try to move to a place where there are fewer electrons. This is the basic operating principle of a battery. The negative terminal of a ...
Chem 133 – Spring 2007 – Exam #1 – March 13, 2007
Chem 133 – Spring 2007 – Exam #1 – March 13, 2007

Stabilization of a cold cathode electron beam glow discharge
Stabilization of a cold cathode electron beam glow discharge

AC Theory introduction - Legh Richardson Electrical Services
AC Theory introduction - Legh Richardson Electrical Services

1112 Lecture notes - 1st group
1112 Lecture notes - 1st group

... electron has a charge of only -1.6 x 10-19 C. That means it would take a few billion billion of them to make one Coulomb. By convention, the charge on the electron is defined as negative, meaning the charge on the proton is positive. The signs are opposite, but the charges are exactly the same magni ...
Electric and Magnetic Fields from Simple Circuit Shapes
Electric and Magnetic Fields from Simple Circuit Shapes

... for V in volts, A in square centimeters, and D in meters. At this point, a few remarks are in order: 1. We now have an expression for E fields that can be calculated by entering the drive voltage, which often is more readily known to the circuit designer than the current. 2. Except for very low-impe ...
Simulation and Design of a Very Small Magnetic Core Loop
Simulation and Design of a Very Small Magnetic Core Loop

Chapter 16 Current Transformer Design
Chapter 16 Current Transformer Design

Magnetism: quantities, units and relationships
Magnetism: quantities, units and relationships

... Where θ is the angle between the wire and the field direction. So it seems that H describes the way magnetism is generated by moving electric charge (which is what a current is), while B is to do with the ability to be detected by moving charges. In the end, both B and H are just abstractions which ...
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Galvanometer



A galvanometer is a type of sensitive ammeter: an instrument for detecting electric current. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field.Galvanometers were the first instruments used to detect and measure electric currents. Sensitive galvanometers were used to detect signals from long submarine cables, and to discover the electrical activity of the heart and brain. Some galvanometers use a solid pointer on a scale to show measurements; other very sensitive types use a miniature mirror and a beam of light to provide mechanical amplification of low-level signals. Initially a laboratory instrument relying on the Earth's own magnetic field to provide restoring force for the pointer, galvanometers were developed into compact, rugged, sensitive portable instruments essential to the development of electrotechnology. A type of galvanometer that records measurements permanently is the chart recorder. The term has expanded to include use of the same mechanism in recording, positioning, and servomechanism equipment.
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