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An air core toroid with 10 turns/cm carr...

An air core toroid with 10 turns/cm carries a current of 1 milliampere. The intensity of magnetic field inside it, in `"weber"//m^(2)` will be-

A

`4pixx10^(-6)`

B

`4pixx10^(-7)`

C

`4pixx10^(-8)`

D

`4pixx10^(-9)`

Text Solution

Verified by Experts

The correct Answer is:
B
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