Question

At resonance, the capacitive energy is ___________ inductive energy.

(a) Greater than

(b) Less than

(c) Equal to

(d) Depends on the circuit

I had been asked this question by my college professor while I was bunking the class.

Enquiry is from Oscillation of Energy at Resonance topic in division Resonance in AC Circuits of Basic Electrical Engineering

Answer 1

Correct option is (c) Equal to

Easiest explanation: At resonance, energy stored in the capacitor is equal to energy stored in the inductor because capacitive reactance and inductive reactance are equal at resonance.                So, at resonance, capacitive energy is equal to inductive energy.