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Find the mutual inductance of two concentric coils of radii `a_(1)` and `a_(2)(a_(1) lt lt a_(2))` if the planes of the coils are same. |
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Answer» Let a current `i` flow in coil of radius `a_(2)` Magnetic field at the centre of coil `=(mu_(0)i)/(2a_(2))pia_(1)^(2)` or `Mi=(mu_(0)i)/(2a_(2))pia_(1)^(2)` or `M=(mu_(0)pia_(1)^(2))/(2a_(2))` |
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