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An inductor coil stores 64 J of magnetic field energy and diss
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An inductor coil stores 64 J of magnetic field energy and dissipates energy at the rate of 640 W when a current of 8 A is passed through it. If this coil is joined across an ideal battery, find the time constant of the circuit in seconds :

A
0.8

B
0.125

C
0.4

D
0.2

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Views: 5,548 students

Updated on: Jul 15, 2022

Exam

Exam:

JEE Mains 2021 Aug 26 Shift 1

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An inductor coil stores 64 J of magnetic field energy and dissipates energy at the rate of 640 W when a current of 8 A is passed through it. If this coil is joined across an ideal battery, find the time constant of the circuit in seconds :
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Question Text
An inductor coil stores 64 J of magnetic field energy and dissipates energy at the rate of 640 W when a current of 8 A is passed through it. If this coil is joined across an ideal battery, find the time constant of the circuit in seconds :
Updated OnJul 15, 2022
TopicAlternating Current
SubjectPhysics
ClassClass 12
Answer TypeText solution:1 Video solution: 2
Upvotes269
Avg. Video Duration3 min