Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A series LCR circuit is connected to an ac source of 220V, 50Hz. The circuit contain a resistance R = 100 
and an inductor of inductive reactance X L = 79.6 
. The capacitance of the capacitor needed to maximize the average rate at which energy is supplied will be_________ 
k
Text Solution
Verified by ExpertsThe correct answer is:
40
(40)
To maximize the average rate at which energy supplied i.e. power will be maximum.
So in LCR circuit power will be maximum at the condition of resonance and in resonance condition
X L = X C
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