ASVAB Electronics Fundamentals and Circuits

Question 1

What is the unit of measurement for electrical current?

Accepted Answer

Ampere

Answer

Volt

Answer

Ohm

Answer

Watt

Question 2

According to Ohm's Law, what is the relationship between voltage, current, and resistance?

Accepted Answer

V = I × R

Answer

V = I ÷ R

Answer

V = I + R

Answer

V = I - R

Question 3

What is the function of a resistor in a circuit?

Accepted Answer

Limit the flow of current

Answer

Store electrical energy

Answer

Generate voltage

Answer

Convert AC to DC

Question 4

In a series circuit with three resistors of 10Ω, 20Ω, and 30Ω, what is the total resistance?

Accepted Answer

60Ω

Answer

5.45Ω

Answer

20Ω

Answer

30Ω

Question 5

What is the difference between AC and DC current?

Accepted Answer

AC changes direction periodically; DC flows in one direction only

Answer

DC changes direction; AC flows in one direction

Answer

AC is more powerful than DC

Answer

There is no difference

Question 6

What is a semiconductor?

Accepted Answer

A material with conductivity between a conductor and an insulator

Answer

A material that always conducts electricity

Answer

A material that never conducts electricity

Answer

A type of wire