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A circular coil is in y-z plane with cen...

A circular coil is in `y-z` plane with centre at origin. The coil is carrying a constant current. Assuming direction of magnetic field at `x = – 25 cm` to be positive direction of magnetic field, which of the following graphs shows variation of magnetic field along x-axis

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
B
`B_("max") =` at centre
`B = (mu_(0) NIR^(2))/(2 (R^(2) + x^(2))^(3//2))`
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