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Magnetic vector potential

{c}

For thin closed wire loops $C_1,C_2$, the mutual inductance is
$$
L_{12}=L_{21}
=\frac{\mu_0}{4\pi}
\oint_{C_1}\oint_{C_2}
\frac{dx_1\cdot dx_2}{|x_1-x_2|}.
$$


Neumann's mutual-inductance formula

Past exam of the mathematics course of the University of Cambridge / 2021 / ib / Paper 1 / 15D / c / Solution

Past exam of the physics B course of the University of Cambridge / 2017 / Paper 2 / Section A / A4 / Solution

Neumann's mutual-inductance formula

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Neumann's mutual-inductance formula

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