A spherical capacitor consists of two concentric spheres with the inner sphere of radius a and the outer sphere of radius b. The total charge on the inner sphere is Q C whereas the outer sphere similarly supports a charge of −Q C. For both spheres, the charge is uniformly distributed. If the permittivity in all regions is the same as that of free space, use Gauss’s law to determine the electric field intensity everywhere. Provide a plot of the magnitude of the electric field intensity versus radial distance as measured from the spherical centre.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.