1.
Branch: Is a single or group of components such as resistors or a source which are connected between two nodes
2.
Faraday's law of induced voltage: Vind= N(ΔΦ/Δt)
3.
Flux: Magnetic lines of force
4.
Flux density: Amount of flux per unit area
5.
Hole: Positive charge that exists only in doped semiconductors because of convalent bonds between atoms. The amount of hole charge is the same as that of a proton and electron.
6.
Hole Current: Motion of hole charges. Direction is the same as that of conventional current.
7.
Inductance: The characteristic that opposes any change in current.
8.
Induction: Current produced by magnetic forces without physical contact.
9.
Infinite: How much resistance is measured in an open circuit.
10.
Ion: Atom or group of atomes with net charge. Can be produced in liquids, gases, and doped semiconductors
11.
Kirchhoff's current law: In an parallel circuit the total current in the main line equals the sum of the individual branch currents.
12.
Kirchhoff's Voltage Law: In a series circuit the sum of all the resistor voltage drops equal the applied voltage.
13.
Lenz' law: The direction of induced current must be such that its own magnetic field will oppose the action that produced the induced current.
14.
Loop: Is a simple closed path in a circuit in which no circuit element or node is encountered more than once.
15.
Mesh: Is a single open loop that does not have a closed path. No components are inside a mesh.
16.
Meter shunt: A precision resistor connected across the meter movement for the purpose of bypassing a specific fraction of circuit's current around the meter movement.
17.
Nagative polarity: Is an excess of electrons
18.
Negative temperature coefficient (NTC): Thermister resistance decreases as its operating temperture increases
19.
Node: A junction, connection or terminal within a circuit were two or more circuit elements are connected or joined together giving a connection point between two or more branches.
20.
Ohm's law: The amount of current in a circuit is directly proportional to the amount of voltage applied and inversly proportional to the amount of resistance.
21.
ohms-per-volt rating: Specifies the sensitivity of a meter in all voltage ranges. The higher the number the better.
22.
Open circuit: Has infinite resistance
23.
Permeability: The ability to concentrate magnetic flux
24.
polarity: Property of electric charge and voltage.
25.
Positive polarity: Deficiency of electrons
26.
Positive temperature coefficient (PTC): Thermister resistance increases as the operating temperature increases.
27.
Potential: The ability to do work in moving another charge. Measured in Volts
28.
Potentiometer: Variable resistor with three terminals connected as a volt divider.
29.
Ratio arm: Two resistors with precision resistances use to determin the value for an unknown resistance.
30.
Relative permeability: The ratio of permeability of a medium to that of free space
31.
Rheostat: Varable resistor with two terminals to vary current (I).
32.
Short circuit: Has practically zero resistance
33.
Solenoid: A coil of wire designed to produce a magnetic field when energized.
34.
Standard resistor: A precision resistance variable 0-9999 in 1 ohm steps.
35.
Thermistor: Thermally sensitive resistor whoes resistance has an non linear value change with changes in operating temperture.
36.
Torque: Any force or system of forces that causes or tends to cause rotation
37.
Varistor: A resistor whose resistance varies in proportion to the voltage of the current through it.
38.
Voltmeter loading: Measured voltage decreases because of an additional load current through the meter
39.
Wheatstone bridage: A circuit that is used to determin the value of an unknown resistance
40.
zero: How much resistance is measured in a short circuit
