Physics · Moving Charges and Magnetism
A current-carrying circular loop of radius R is placed in the x-y plane with its centre at the origin. Half of the loop with x > 0 is now bent so that it lies in the y-z plane. Which of the following statements is correct?
- 1The magnitude of B at (0, 0, z) for z >> R is unchanged.
- 2The magnitude of B at (0, 0, z) for z >> R increases.
- 3The net magnetic moment does not change.
- 4The magnitude of the net magnetic moment now diminishes.✓
Correct answer
The magnitude of the net magnetic moment now diminishes.
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