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Manipal Entrance Test 2018 Physics Paper

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Question : 3

Total: 50

A solenoid of length 50cm and a radius of cross-section 1cm has 1000 turns of wire wound over it. If the current carried is 5A, the magnetic field on its axis, near the centre of the solenoid is approximately
(permeability of free space µ0=4π×10−7T−m∕A)

0.63×10−2T
1.26×10−2T
2.51×10−2T
6.3T

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