Question

If you want a characteristic RL time constant of 1.00 s, and you have a 500 Ω resistor, what value of self-inductance is needed?

a) 0.002 H
b) 0.004 H
c) 0.006 H
d) 0.008 H

Answer 1

The value of self-inductance needed for a characteristic RL time constant of 1.00 s with a 500 Ω resistor is 500 H.

Step-by-step explanation:

To find the value of self-inductance needed for a characteristic RL time constant of 1.00 s with a 500 Ω resistor, we can use the formula:

RL time constant = L / R

Where L is the self-inductance and R is the resistance.

Rearranging the formula, we get:

L = RL time constant * R

Substituting the given values, we have:

L = 1.00 s * 500 Ω = 500 H

Therefore, the value of self-inductance needed is 500 H.