Physics-
General
Easy
Question
A circular loop of radius R carrying current I lies in x-y plane with its centre at origin. The total magnetic flux through x-y plane is
- Directly proportional to I
- Directly proportional to R
- Directly proportional to
- Zero
The correct answer is: Zero
Circular loop behaves as a magnetic dipole whose one surface will be N-pole and another will be S-pole. Therefore magnetic lines a force emerges from N will meet at S. Hence total magnetic flux through x-y plane is zero.
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