A series LCR circuit is connected to an alternating source of emf E. The current amplitude at resonant frequency is 
. If the value of resistance R becomes twice of its initial value then amplitude of current at resonance will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Initially, 
Finally, 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
An electric bulb rated as is connected to an ac source of rms voltage 220 V. The peak value of cur…
An alternating current is represented by the equation, ampere. The RMS value of current and the fr…
An inductor of self inductance 1 H is connected in series with a resistor of ohm and an ac supply …
An inductor of reactance , a capacitor of reactance , and a resistor of resistance are connected…
For ac circuit shown in figure, and and the phase difference between and is . The input signal…
An ac current is represented as The r.m.s value of the current is