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A long solenoid of 50 cm length having 100 turns carries a current of 2.5 A.

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+2 votes
47.3k views
in Physics by (48.2k points)

A long solenoid of 50 cm length having 100 turns carries a current of 2.5 A. The magnetic field at the centre of the solenoid is :

(1) 3.41 x 10-5 T

(2) 6.28 x 10-4 T

(3) 3.41 x 10-4 T

(4) 6.28 x 10-5 T

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1 Answer

+2 votes
by (48.6k points)

Correct answer is (2) 6.25 x 10-4 T

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