Show that the magnetic field at a point located at a distance ( ) from the central…

PHYSICS · Subjective · CBSE · Physics · Electromagnetic Waves · Electromagnetic Waves

Problem

Show that the magnetic field at a point located at a distance

r

(

r<R

) from the central axis of a parallel-plate capacitor (plate radius

R

) that is being charged is given by

B = \dfrac{\mu_0\varepsilon_0\,r}{2}\,\dfrac{dE}{dt}

, where

E

is the electric field between the plates.