MHT CET 2023 Physics question
When an inductor 'L' and a resistor 'R' in series are connected across a 15 V, 50 Hz a.c. supply, a current of 0.3 A flows in the circuit. The current differs in phase from applied voltages by . The value of 'R' is
Answer: (D)
Solution
Impedance . In a series LR circuit the phase angle satisfies . With , , option (d). Then $ =
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