A tightly wound 100 turns coil of radius 10 cm carries a current of 7 A. The magnitude of the magnetic field at
the centre of the coil is (Take permeability of free space as
 π× 10–7 SI units):                                                                                   

                                                 NEET -2024

Solution:                
A tightly wound 100 turns coil of radius 10 cm carries a current of 7 A. The magnitude of the magnetic field at the centre of the coil is (Take permeability of free space as 4 π× 10–7 SI units):

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(4) Statement I is incorrect but Statement II is correct