AC

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An electronic circuit has resistance of 20. The current is measured to be 6A. How many volts are applied to the circuit?

120

An electric motor is running on 120b. The current is measured to be 2A. How many ohms of resistance is the motor.

60

What type of fixed resistor is made from a compound of carbon graphite and resin bonding material?

Composition Carbon

What law states that the force of electrostatic attraction or repulsion is directly proportional to the product of the two charges and inversely proportional to the square of the distance between them?

Coulomb's

When a magnetic material's molecules are all lined up, and increases in magnetic field strength, the material has reached _________.

Saturation

The measure of a material's resistance to magnetism is known as _________.

Tolerance

The strength of an electromagnet is primarily proportional to its_________.

core resistance

The angular difference between true north and magnetic north is known as the angle of _______.

declination

If an object is placed in the field of a strong electromagnet connected to anAC line, the object will be _________.

demagnetized

What is the maximum number of valence electrons in an atom?

eight

What type of magnet depends on flowing current to produce a magnetic field?

electromagnet

Insulation are the only materials that can hold _________ stationary.

electrons

What type of fixed resistor is made by combining metal with glass and then applying it to a ceramic base as a thick film?

metal glaze

The nucleus of an atom contains ___________.

neutrons and protons

In a _______ circuit, the voltage stays the same, but in a _____ circuit, the current stays the same .

parallel, series

The basic law of physics states that like charges________ and opposite charges_________.

repel ;attract

The semiconductor material used as a coating on copy machine drums is _________.

selenium

There is very little resistance and a large amount of current flows in a(n) _________.

short

If a circuit is open, current _________ flow

will not

What type of fixed resistor is made by winding a piece of resistive wire around a ceramic core?

wire-wound

What type of resistor are generally used when a high power rating is needed?

wire-wound

What color used as the multiplier band means to divide the combined first two numbers by 10?

gold

If a thundercloud has a positive charge, the current in the lightning bolt will flow from the_________.

ground to the cloud

The neutral conductor is also referred to as the _________ conductor.,

grounded

the velocity of AC through. a conductor is _________ the speed of light.

less than

What type of fixed resistor is made by applying a film of metal to a ceramic rod in a vacuum?

metal film

The unit of resistance to current flow is the __________.

ohm

A conductor is mad from a material that contains between ________ valence electrons.

one and three

What is another term for a variable resistor?

potentiometer

When an object protected by a lightning _________i is struck by a lightning bolt, it will bleed the lightning discharge to ground before the protected object can be harmed.

rod

The three substances that form natural magnets are _________.

Iron, nickel, and cobalt

In the English system, the total force producing a magnetic field is the__________.

Magnetomotive force

In a clothes dryer, the greatest static charges generally are built up on_________ fabrics.

Man-made

The statement, "In a DC circuit, the current is directly proportional to voltage and inversely proportional to resistance." is known as _________Law.

Ohm's

Alternating current is described as ___________

bidirectional

Alightning protection device that is grounded at one end, with the other end close to but not touching the object to be protected, is called a lightning ________.

Arrestor

A precipitator is a type of ___________.

air filter

What is the smallest part of an element that still contains the properties of an element?

an atom

Static electricity refers to electrons that _________ moving.

are

What force is demonstrated in objects with unlike charges?

attraction

The ________ of a resistor indicates the plus and minus limits of a resistor's ohmic value.

reluctance


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