Basic Electronics- Voltage and Current MCQs

Question 1

An element is a substance that is:

Accepted Answer

found only in its pure form

Answer

varied throughout the entire piece

Answer

used only in electronics

Answer

electrically charged

Question 2

Current is:

Accepted Answer

the movement of electrons

Answer

the presence of a positive charge

Answer

the abundance of electrons

Answer

the repulsion of electrons

Question 3

What do you call a diagram that shows the electrical connections of a circuit's components?

Accepted Answer

A schematic diagram

Answer

A pictorial diagram

Answer

A block diagram

Answer

An electrical diagram

Question 4

A short circuit will have:

Accepted Answer

a large current flow

Answer

a small current flow

Answer

no current flow

Answer

some current flow

Question 5

The basic difference between a fuse and a circuit breaker is

Accepted Answer

a circuit breaker is reusable

Answer

a fuse is slower

Answer

a fuse is reusable

Answer

a circuit breaker is more reliable

Question 6

Which is the smallest?

Accepted Answer

electron

Answer

atom

Answer

proton

Answer

neutron

Question 7

A secondary cell generates dc via chemical activity; a primary cell generates dc:

Accepted Answer

chemically

Answer

electrically

Answer

thermally

Answer

optically

Question 8

Which of the following statements is true?

Accepted Answer

Like charges repel and unlike charges attract.

Answer

Unlike charges repel and like charges attract.

Answer

Unlike charges attract and like charges attract.

Answer

Like charges repel and unlike charges repel.

Question 9

f an electrical system is compared to a fluid system, the electrical current corresponds to the:

Accepted Answer

water flow

Answer

pressure

Answer

pump

Answer

water wheel