Electricity
A charged atom is known as a(n):
Ion.
Ohm’s law may be expressed as an equation as:
E=IR or I=E/R
The typical use of a resistor in a circuit is to limit the amount of:
Current Flow
The frequency is the number of _____ of AC per second (1 second).
Cycles.
One coulomb of charge is defined as a charge having __________ electrons.
6.28 x 10 to the 18th power
Materials which oppose the flow of electrons are referred to as:
Insulators.
___________________ is a measurement of a rate at which a charge flows through a conductor
Current
Chemical energy can be converted into electricity; the most ordinary form of this is the:
Battery.
An _____of voltage or current is the induced voltage or current flowing at any instant during a cycle.
Instantaneous value.
A _______ is a device that transforms AC into DC by limiting or regulating the direction of current flow.
Inverter.
Conventional current theory was the first to be developed. It reasoned that electrical current flows from:
positive to negative.
True Or False
Electrons move, when a path is available, from a point of excess electrons (higher potential energy) to a point deficient in electrons (lower potential energy).
True
Wire-wound resistors typically control large amounts of current and have high _________ ratings.
Voltage.
DC flows constantly in only one direction with a constant polarity, whereas AC current flow changes _____ at regular intervals.
direction and intensity
The three leads of the transistor are:
Emitter, Base and Collector.
Electrons moving through a wire creates a _________ __________ around a conductor.
Magnetic Field.
The resistance of a metallic conductor is dependent upon the type of conductor material, its length, the cross-sectional area and what?
Temperature
The percentage variation between the marked value and the actual value of a resistor is known as the ___________________ of a resistor.
Tolerance.
Inductive reactance and capacitive reactance may create a _______ between the voltage and current in an AC circuit.
Phase shift
What two connections of a bipolar transistor must be forward biased in order for it to operate correctly?
Base and Emitter
Electrical response to the flow of electrons is considered to occur at the speed of:
186,000 miles / second.
The measure of opposition to the lines of flux through a material is known as:
Reluctance.
When a conductor is moved through a magnetic field, an _________is induced in the conductor.
EMF (Electromotive Force)
The effective value of a sine wave is actually a measure of the _____ of the sine wave.
Counter EMF
The fixed mica capacitor is made of metal foil plates that are separated by sheets of mica, which form the:
dielectric.