A coil of inductance 5 H is connected to a 6 V cell through resistance 10 Ω at t=0. Find the emf across the coil at t=ln√2 s.
Physics · AC Circuits
JEE Mains

Question

A coil of inductance 5 H is connected to a 6 V cell through resistance 10 Ω at t=0. Find the emf across the coil at t=ln√2 s.

G1 Physics · Accepted Answer

Use Xₗ=ωL, X꜀=1/(ωC), Z=√[R²+(Xₗ−X꜀)²] and Iᵣₘₛ=Vᵣₘₛ/Z. The circuit condition gives 3.