42.A long solenoid wire of radius 'a' carries a steady current i.The C – InterviewSolution

1.	42.A long solenoid wire of radius 'a' carries a steady current i.The Current is uniformly distributed across its cross section .The ratio of magnetic field at a/2 and 2a is
Answer» 42.A long solenoid wire of radius 'a' carries a steady current i.The Current is uniformly distributed across its cross section .The ratio of magnetic field at a/2 and 2a is

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