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This question belongs to Electrical Engineering RL Circuits

RL Circuits

?

A 1.5 kΩ resistor and a coil with a 2.2 kΩ inductive reactance are in series across an 18 V ac source. The power factor is

A) 564 B) 0.564 C) 6.76 D) 55.7

Answer & Solution

Correct Answer: Option B

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Question posted by Examveda

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Jadoon Khan 2 years ago

Z=√(r^2+XL^2)=2663.
P.f = cosq = r/z=1500/2663

0.564.

Engr Farman 6 years ago

P.f= R/IV

Engr Farman 6 years ago

p.f = R/XL

Ayomide Olarenwaju 8 years ago

|z| = sqrt(1500^2+2200^2) = 2663

Angle = inverse tan(22001500) = 55.7

Power Factor = Cos(55.7) = 0.564

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A 1 5 k resistor and a coil with a 2...

A 1.5 kΩ resistor and a coil with a 2.2 kΩ inductive reactance are in series across an 18 V ac source. The power factor is

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