Given below are two statements : Statement-I : The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor. Statement-II : In ac circuit, the average power delivered by the source never becomes zero. In the light of the above statements, choose the correct answer from the options given below :
Options

Question

Given below are two statements : Statement-I : The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor. Statement-II : In ac circuit, the average power delivered by the source never becomes zero. In the light of the above statements, choose the correct answer from the options given below :

Options

G1 Physics · Accepted Answer

Use Z=√[R²+(Xₗ−X꜀)²], Xₗ=ωL, X꜀=1/(ωC), and P̄=VᵣₘₛIᵣₘₛcosφ with cosφ=R/Z. Substitution gives Statement I is true but Statement II in false..