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Two parallel plates having a p.d. of 200V among them are spaced 0.8mm apart.
What is the electric field strength?
Find also the flux density when the dielectric among the plates is
(a) Air and
(b) Polythene of relative permittivity 2.3
Properties of Lines of Flux To make the imaginary lines of flux describe the behaviour of the magnetic field we must give them appropriate properties. Thus lines of flux have
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