If both the resistance and the inductance in an LR series circuit are doubled the new inductive time constant will be:
A)twice the old
B)four times the old
C)half the old
D)one-fourth the old
E)unchanged

Question

Quizplus · Accepted Answer

The inductive time constant for an LR circuit is given by τ = L/R, where L is the inductance and R is the resistance. If both L and R are doubled, the ratio L/R remains unchanged, meaning the inductive time constant remains the same.

If Both the Resistance and the Inductance in an LR