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Electromagnetic Waves

Displacement current

• It is the current that exists in the region where the electric field and the electric flux is changing with time.

• The displacement current is given by ${I}_{D}={\epsilon }_{0}\frac{d{\Phi }_{E}}{dt}$

• where,ε0 = absolute permittivity of free space,

• $\frac{d{\Phi }_{E}}{dt}$= time rate of change of the flux.

Ampere-Maxwell's Law

• According to this law the line in…

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