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The magneitc field produced at the cente...

The magneitc field produced at the center of a current carrying circular coil of radius r, is

A

directly proportional to r

B

inversely proportional to r

C

directly proportional to `r^(2)`

D

inversely proportional to `r^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Magnetic field at the centre of coiul is `B, =( mu_(0)Ni)/(2r)`
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