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What is the magnitude of magnetic field at the centre of a circular wire, if the radius of the circular wire is 1 m and the current is 20 A.?

Asked by Rhea Babu 11th September 2013, 9:12 PM
Answered by Expert
Answer:
B= moI/ 2pi R
=  4x pi x 10 -7 x 20/2 x pi x 1
=4 x 10-6 T
Answered by Expert 12th September 2013, 12:35 PM
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