Multiple Choice Questions: Each multiple choice question orincomplete statement

Question

Multiple Choice Questions: Each multiple choice question orincomplete statement has
one best answer -- determine the bestanswer and explain your choice by invokingthe
appropriate concept, principle, and/or mathematicalrelation.

2. A variable inductor is wired across the terminals of an acvoltage source. Increasing
the inductance

a) increases the reactance and decreases the current.
b) decreases the reactance and increases the current.
c) decreases the reactance, leaving the current unchanged.
d) decreases the reactance and decreases the current.
e) none of these

Explanation / Answer

Hi, We have the reactance of the inductor XL =2fL So when we increase the inductance definitely reactanceincreases as it is directly proportional to the inductance. When the reactance increases, the current decreases. So, option (a) is correct. Hope this helps you.

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