An inductor of inductance 2 mH is connected to a 220 V , 50 Hz a.c. source. Let the inductive reactance in the circuit is X 1. If a 220 V dc source replaces the ac source in the circuit, then the inductive reactance in the circuit is X 2 . X 1 and X 2 respectively are:

Question

An inductor of inductance 2 mH is connected to a 220 V , 50 Hz a.c. source. Let the inductive reactance in the circuit is X 1. If a 220 V dc source replaces the ac source in the circuit, then the inductive reactance in the circuit is X 2 . X 1 and X 2 respectively are: (A) 6.28 Ω, zero (B) 6.28 Ω, infinity (C) 0.628 Ω, zero (D) 0.628 Ω, infinity

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<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/1aa44c459d150711ef854bab9375c55e-.png" /> For A C XL=ω L X 1=100 π × 2 × 10-3 For DC, ω=0 X 1=0.2 π Ω X L =ω L X 2=0 X 1=0.628 Ω

Q. An inductor of inductance $2 m H$ is connected to a $220 V, 50 Hz$ a.c. source. Let the inductive reactance in the circuit is $X_{1}$ . If a $220 V d c$ source replaces the ac source in the circuit, then the inductive reactance in the circuit is $X_{2} . X_{1}$ and $X_{2}$ respectively are:

$6.28 Ω$ , zero

$6.28 Ω$ , infinity

$0.628 Ω$ , zero

$0.628 Ω$ , infinity

For $A C X_{L} = ω L$
$X_{1} = 100 π \times 2 \times 1 0^{- 3}$
For DC, $ω = 0$
$X_{1} = 0.2 π Ω$
$X_{L} = ω L$
$X_{2} = 0$
$X_{1} = 0.628Ω$

Q. An inductor of inductance 2mH is connected to a 220V,50Hz a.c. source. Let the inductive reactance in the circuit is X1​. If a 220Vdc source replaces the ac source in the circuit, then the inductive reactance in the circuit is X2​.X1​ and X2​ respectively are:

6.28Ω, zero

6.28Ω, infinity

0.628Ω, zero

0.628Ω, infinity