Question on Electrical Reactance
A 1.5 k resistor and a coil with a 2.2 k 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
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power factor = 1.5/√[1.5² + 2.2²] = 0.5633
Answered by
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Answer:
0.564
Explanation:
R=1.5k
inductance L=2.2k
impedance Z=√R²+L²
=√(1.5)+(2.2)²
=✓7.09
=2.66 ohm
power factor =R/Z
=1.5/2..66
=0.564
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