Question

Inductive reactance offered by an inductor of inductance L in ac circuit of
angular frequency w is
(A)
His
(B)
w.L
(C)
1
W.L
1
(D)
-13​

Answer 1

Answer:B

Explanation:

Answer 2

(B) 2πwL

Explanation:

• Inductive reactance is denoted by $X_{L}$

• Inductive reactance($X_{L}$) : 2π w L

• where,

1. w is the frequency of the alternating current measured in Hertz(hz)
2. L is the inductance measured in henry(h)

• It is proportional to the frequency of the current and hence inversely proportional to the Time.

                                      $X_{L}$ ∝ w and $X_{L}$ ∝ (1/T).

• The resistance provided by an inductive circuit is known as inductive reactance or simply reactance.

• It's called reactance because it differs somewhat from the resistance provided by any device.

• The SI unit is Ohm(Ω).