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QAIPMT-2006-Ph-2442: NEET 2006 Physics - Class 12 AIPMT-2006-Ph-2442 Solution: Kirchoff's first and second laws of electrical circuits are…
Kirchoff's first and second laws of electrical circuits are consequences of conservation of energy and electric charge respectively conservation of energy conservation of electric charge and energy respectively conservation of electric charge.
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