Question

A resistor, an inductor, and a switch are all connected in series to an ideal battery of constant terminal voltage. what does the time constant for the circuit represent?

Answer 1

In physics and engineering, the time constant usually denoted by the Greek letter τ, (tau), characterizes the frequency response of a first-order, linear time-invariant (LTI) system. Time constant of an RC circuit is the product of R and C. Time constant of an RL circuit is equal to inductance divided by resistance.