Teaching OSSSC TGT Teachers Mock Test Series 2025 Physics Electromagnetic Oscillations and Alternating Current AC Voltage Applied to a Series LCR Circuit
A series LCR circuit is connected to an alternating source of emf E. The current amplitude at resonant frequency is I0 . If the value of resistance R becomes twice of its initial value then amplitude of current at resonance will be
1
I0
2
\(\rm \frac{I_{0}}{2}\)
3
\(\rm \frac{I_{0}}{\sqrt2}\)
4
2I0