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KCET 2011 Physics Solved Paper

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Question : 39

Total: 60

The torque required to hold a small circular coil of 10 turns, area 1mm2 and carrying a current of (‌

)A in the middle of a long solenoid of 103‌turns∕m carrying a current of 2.5A, with its axis perpendicular to the axis of the solenoid is ..........................

1.5×10−6N−m
1.5×10−8N−m
1.5×10+6N−m
1.5×10+8N−m

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