Circular coil A of radius R and current flowing through it is I. Another circular coil B of radius 2R and if 2I is the current flowing through it, then the magnetic field at the centre of the circular coil are in the ratio (BA:BB)
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Step 1:** The magnetic field at the center of a circular coil A with radius R and current I flowing through it is given by: \[ B_A = \frac{\mu_0 I}{2R} \] ** Show more…
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