Physics · Magnetic Effects of Current
The magnetic field due to a current-carrying circular coil at a point far off on its axis, at a distance 'r' from the center of the coil (where r is much greater than the radius of the coil), is proportional to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11r3✓
- 21r3/2
- 31r2
- 41r
Correct answer
1r3
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