Verified Solution • 2025–26 Session
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QAIPMT-2006-Ph-2443: NEET 2006 Physics - Class 12 AIPMT-2006-Ph-2443 Solution: A coil of inductive reactance \(31 \) has a resistance of \(8…
A coil of inductive reactance has a resistance of . It is placed in series with a condenser of capacitative reactance . The combination is connected to an a.c. source of 110 V. The power factor of the circuit is
Multiple Choice Options
- A 0.33
- B 0.56
- C 0.64
- D 0.8
Step-by-Step Verified Solution
Impedance of series LCR is
Z = R 2 + ( X L _ X C ) 2
= 8 2 + ( 31 _ 25 ) 2
= 64 + 36 = 10 �
Power factor, cos _ = R Z = 8 10 = 0.8