Question

In given circuit R = 100ohm . If voltage leads current by 60° then find -
(a)
Current supply by source.
(b)
Average power​

Answer 1

Answer:

Power factor = Cos phi = R/Z

phi = 60°

1/2 = R/Z

Z = 2R

Z =impedence = 200ohm

Current = V/Z

Currentmax= 200/200

Irms = peak/√2

Irms = 1/√2

Power = i^2 R

P = 50watt

or

Power

Vrms Irms Cosphi

200√2 × 1/√2 × 1/2

50watt

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