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Class 12 NEET Physics Magnetism and Matter Questions

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Question : 12

Total: 50

A long solenoid of radius 1mm has 100 turns per mm. If 1 A current flows in the solenoid, the magnetic field strength at the centre of the solenoid is

6.28×10−2T
12.56×10−2T
12.56×10−4T
6.28×10−4T

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