What is the time constant for a 50 mH inductor and 5 $\mathrm { kO }$ resistor connected in series?
A) 10 ms
B) 100 s
C) 250 s
D) 10 $\mu S$

Question

What is the time constant for a  50 mH inductor and 5 $\mathrm { kO }$ resistor connected in series?
A)  10 ms
B)  100 s
C)  250 s
D) 10 $\mu S$

Quizplus · Accepted Answer

The time constant ($\tau$) for an RL circuit is given by:
$$\tau = \frac{L}{R}$$

Substituting the given values, we get:
$$\tau = \frac{50 \times 10^{-3} \text{ H}}{5 \times 10^3 \text{ }\Omega} = 10 \mu \text{s}$$

Therefore, the answer is D.

What Is the Time Constant for a 50 MH kO\mathrm { kO }kO