MHT CET 2025 Physics question
A resistor of 50, inductor of self inductance H and a capacitor of unknown capacity are connected in series to an a.c. source of 100 V, 50 Hz supply. When the voltage and current are in phase, the value of capacitance is
Answer: (D)
Solution
Voltage and current are in phase at resonance: , i.e. , so . With rad/s: and .
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