Question

1. the formula for inductive reactance in an rl parallel circuit is

a 1 ÷ 2πfl

b 1 ÷ fl

c 2πfl

d fl

Explanation:

Step1: Recall the formula for inductive reactance

The formula for inductive reactance \(X_{L}\) is \(X_{L}=2\pi fL\), where \(f\) is the frequency and \(L\) is the inductance. This formula is fundamental in AC circuit analysis for inductors, whether in series or parallel (like in an RL parallel circuit). The other options (A: \(1\div2\pi fL\) is the formula for capacitive reactance \(X_{C}\) when considering \(X_{C}=\frac{1}{2\pi fC}\), B: \(1\div fL\) and D: \(fL\) are not standard formulas for inductive reactance).

Answer:

C. \(2\pi fL\)