Question 1

What is the time constant of an RL circuit?

Accepted Answer

L/R

Answer

R/C

Answer

C/R

Answer

R/L

Question 2

What happens to the inductor current in an RL circuit when the switch is closed?

Accepted Answer

It increases gradually

Answer

It decreases gradually

Answer

It stays constant

Answer

It increases instantly

Question 3

What is the unit of RL time constant?

Accepted Answer

seconds

Answer

amperes

Answer

volts

Answer

ohms

Question 4

What happens to the inductor current in an RL circuit when the switch is opened?

Accepted Answer

It decreases gradually

Answer

It increases gradually

Answer

It stays constant

Answer

It decreases instantly

Question 5

What is the effect of increasing the resistance in an RL circuit?

Accepted Answer

Increases the time constant

Answer

Decreases the time constant

Answer

Has no effect on time constant

Answer

Increases the current

Question 6

What is the effect of increasing the inductance in an RL circuit?

Accepted Answer

Increases the time constant

Answer

Has no effect on time constant

Answer

Decreases the time constant

Answer

Increases the current

Question 7

What is the effect of decreasing the resistance in an RL circuit?

Accepted Answer

Decreases the time constant

Answer

Decreases the current

Answer

Has no effect on time constant

Answer

Increases the time constant

Question 8

What is the effect of decreasing the inductance in an RL circuit?

Accepted Answer

Decreases the time constant

Answer

Decreases the current

Answer

Has no effect on time constant

Answer

Increases the time constant

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