RADT 1075 Unit I

The study of stationary electric charges is known as:

• electromagnetism

• electronics

• electrostatics

• electrodynamics

The unit of measurement of electrical charges (SI) is

• Coulomb

• Newton

• Watt

• Joule

Which of the following is NOT a correct law of electrostatics:

• like charges repel

• unlike charges attract

• electric charges are uniformly distributed on the surface of conductors

• only positive charges move along solid conductors

As two charges get closer, the electrostatic force is ______ proportional to the ________ of the distance between them.

• directly; amount

• inversely; amount

• inversely; square

• directly; square

Which is NOT a method of electrification?

• friction

• magnetism

• contact

• induction

The flow of electrons along a conductor is:

• electrostatics

• electric current

• resistance

• electric potential

The volt is the unit of measure for

• electric potential

• electric current

• resistance

• electrostatics

A material that allows electrons to move is a(n):

• insulator

• volt

• conductor

• inductor

A battery produces:

• indirect current

• current that changes direction

• alternating current

• direct current

Ohm’s law can be written as:

• volts = amps × ohms

• amps = volts × ohms

• ohms = volts × amps

• none of these