NEET Physics Moving Charges and Magnetism Questions Solved


A circular coil 'A'  has a radius R and the current flowing through it is I. Another circular coil ‘B’ has a radius 2R and if 2I is the current flowing through it, then the magnetic fields at the centre of the circular coil are in the ratio of (i.e. BA to BB
(a) 4 : 1                             (b) 2 : 1
(c) 3 : 1                             (d) 1 : 1

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