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Confusion regarding phase
As far as I know about phase if the phase difference between two waves is positive, the former is leading..and the latter is lagging. Then why has D J Grifith stated this?
If the phase of the magnetic ...
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Coaxial cable and faraday cage: why those shielding properties precisely?
The magnetic field produced by a coaxial cable outside of the outer shell is $0$. Indeed, integrating $\nabla \times \mathbf{B}=\mu_0 \mathbf{j}$ along a circle outside the outer shell, the inner ...
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