A series RL circuit is connected to an emf source of angular frequency .The current: A)leads the applied emf by tan^-1( L/ B)lags the applied emf by tan^-1( L/ C)lags the applied emf by tan^-1( R/ D)leads the applied emf by tan^-1( R/ E)is zero

Question

Quizplus · Accepted Answer

In a series RL circuit, the current lags the applied emf by an angle given by the equation tan⁻¹(ωL/R), where ω is the angular frequency of the emf, L is the inductance of the circuit, and R is the resistance of the circuit. Therefore, the current in the given circuit lags the applied emf by an angle given by tan⁻¹(F1L/R). Choice B correctly represents this relationship.

A Series RL Circuit Is Connected to an Emf Source