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The magnetic field around a current-carrying coil lasts
  • a)
    for a few hours
  • b)
    a few minutes
  • c)
    for ever
  • d)
    for the duration for which current flows through it
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The magnetic field around a current-carrying coil lastsa)for a few hou...
for the duration for which current flows through it
This question is part of UPSC exam. View all Class 7 courses
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The magnetic field around a current-carrying coil lastsa)for a few hou...
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The magnetic field around a current-carrying coil lastsa)for a few hoursb)a few minutesc)for everd)for the duration for which current flows through itCorrect answer is option 'D'. Can you explain this answer?
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