ASVAB Electronics Practice Test 4

Question 1

In a parallel circuit with two equal resistors of 10Ω each, the total resistance is:

Accepted Answer

5Ω

Answer

For two equal resistors in parallel, total resistance = R/2 = 10Ω/2 = 5Ω.

Question 2

What does the 'Q' factor represent in an LC circuit?

Accepted Answer

The quality or sharpness of resonance

Answer

The Q (quality) factor describes how sharp or selective a resonant circuit's frequency response is.

Question 3

Semiconductors have conductivity that falls between:

Accepted Answer

Insulators and conductors

Answer

Semiconductors have electrical conductivity between that of a conductor and an insulator, making them useful for controlling current.

Question 4

What happens to the resistance of a conductor as its temperature increases?

Accepted Answer

It increases

Answer

For most conductors, resistance increases with temperature due to increased atomic vibration impeding electron flow.

Question 5

Which of the following is an example of an active electronic component?

Accepted Answer

Transistor

Answer

A transistor is an active component because it can amplify or switch signals and requires a power source.

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