Class 12 NEET Physics Moving Charges and Magnetism

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Question : 20 of 100
 
Marks: +1, -0
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 : µ0=4π×10−7TmA−1
[NEET-2020]
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