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If tan ϕ = 10 and the resistance is 2 ohm, calculate the inductive reactance.

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If tan ϕ = 10 and the resistance is 2 ohm, calculate the inductive reactance.

(a) 10 ohm

(b) 20 ohm

(c) 30 ohm

(d) 40 ohm

I got this question by my college professor while I was bunking the class.

My question comes from Inductive and Non-Inductive Circuits in chapter Inductance in a DC Circuit of Basic Electrical Engineering

1 Answer

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Best answer
The correct choice is (b) 20 ohm

The explanation is: We know that:

tan(ϕ)=XL/R

From the given question, we find that the inductive reactance is 20 ohm.

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