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In an inductive circuit, when the XL value increases, the circuit power factor?

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in Basic Electrical Engineering by (88.7k points)
In an inductive circuit, when the XL value increases, the circuit power factor?

(a) Increases

(b) Decreases

(c) Remains the same

(d) Becomes zero

I got this question during an online exam.

My question is from Inductive and Non-Inductive Circuits topic in portion Inductance in a DC Circuit of Basic Electrical Engineering

1 Answer

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Best answer
The correct choice is (b) Decreases

Easy explanation: tan ϕ = XL/R  and  Power factor=cos ϕ

As XL increases, tan ϕ increases, ϕ increases, cos ϕ decreases and hence power factor decreases.

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