A series R-C combination is connected to an AC source of angular frequency ω=500 rad s⁻¹. If the impedance magnitude is R√1.25, find the time constant in milliseconds.
Physics · AC Circuits
JEE Advanced

Question

A series R-C combination is connected to an AC source of angular frequency ω=500 rad s⁻¹. If the impedance magnitude is R√1.25, find the time constant in milliseconds.

G1 Physics · Accepted Answer

Use Xₗ=ωL, X꜀=1/(ωC), Z=√[R²+(Xₗ−X꜀)²] and Iᵣₘₛ=Vᵣₘₛ/Z. The circuit condition gives 4.