The current on the winding of a toroid i...

The current on the winding of a toroid is 2 A. It has 400 turns and mean circumferential length is 40 cm. With the help of search coil and charge measuring instrument the magnetic field is found to be 1 T. The susceptibility is

A

100

B

200

C

300

D

400

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The correct Answer is:

D

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