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Question: Answered & Verified by Expert
A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. Then, the loop will have a tendency to

PhysicsMagnetic Effects of CurrentNEET
Options:
  • A Expand
  • B Move towards +ve x-axis
  • C Contract
  • D Move towards - ve x-axis
Solution:
2066 Upvotes Verified Answer
The correct answer is: Expand
The net force on a current-carrying loop in a uniform magnetic field is zero. Hence, the loop cannot translate.



From Fleming's left-hand rule, we can see that if the magnetic field is perpendicular to paper inwards and current in the loop is clockwise the magnetic force Fm on each element of the loop is radially outwards or the loop will have the tendency of expanding.

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