NEET UG PHYSICS MCQ: ALTERNATING CURRENT

1 Hard

1 of 1

Application +4 | -1

In a series

L-C-R

circuit,

C=10^{-11} \mathrm{~F}, L=10^{-5} \mathrm{H}

and

R=100 \Omega

, when a constant DC voltage

E

is applied to the circuit, the capacitor acquires a charge

10^{-9} \mathrm{C}

. The

\mathrm{DC}

source is replaced by a sinusoidal voltage source in which the peak voltage

E_0

is equal to the constant

\mathrm{DC}

voltage

E

. At resonance, the peak value of the charge acquired by the capacitor will be

View answer and explanation

Correct option: C

10^{-10} \mathrm{C}

Option D (

10^{-8} \mathrm{C}

) is correct because at resonance, the impedance is minimized, leading to a larger current and thus a larger charge on the capacitor.

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