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The magnitude of the magnetic field at the center of a current carrying circular coil is directly proportional to |
Permeability of free space and inversely proportional to current and radius of the coil. Permeability of free space and current and inversely proportional to radius of the coil. Current and inversely proportional to permeability of free space and radius of the coil. Current and radius of the coil and inversely proportional to permeability of free space. |
Permeability of free space and current and inversely proportional to radius of the coil. |
The correct answer is Option (2) → Permeability of free space and current and inversely proportional to radius of the coil. Magnitude of magnetic field at the centre of current carrying circular coil $=\frac{\mu_0 I}{2 r}$.
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