66 â ‹Q66 A coil when connected to a dc source of 12 V, carries a current of - Physics - Alternating Current

Question

66

â€‹Q66 A coil when connected to a dc source of 12
V, carries a current of 4 A If this coil is connected is a ac
source of 12 V and 50 rad/s, then it carries a current of 2 4 A The
inductance of the coil is -

(A) 48 H (B) 4 H (3) 12 5 H (4) 8 ×10–2 H

Decoder_2 · Accepted Answer

Dear
Student,

For
DC,

R = Vi = 124 = 3ohmFor AC,Z = Vi = 122
4 = 5ohmAlso,Z =R2 +(ωL)25 = 32 +(50)2L2L = 8×10-2 HRegards

66 ​Q66. A coil when connected to a dc source of 12 V, carries a current of 4 A. If this coil is connected is a ac source of 12 V and 50 rad/s, then it carries a current of 2.4 A. The inductance of the coil is - (A) 48 H (B) 4 H (3) 12.5 H (4) 8 ×10–2 H

66

Q66. A coil when connected to a dc source of 12 V, carries a current of 4 A. If this coil is connected is a ac source of 12 V and 50 rad/s, then it carries a current of 2.4 A. The inductance of the coil is -

(A) 48 H (B) 4 H (3) 12.5 H (4) 8 ×10^–2 H