MHT CET 2024 Physics question
A resistor of , inductor of self inductance H and a capacitor of unknown capacity are connected in series to an a.c. source of 100V and 50 Hz. When the voltage and current are in phase, the value of capacitance is (nearly)
Answer: (B)
Solution
Voltage and current are in phase at resonance, so , i.e. and . Here rad/s, so and
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