Electricity and Magnetism by Sunil Kumar Singh pdf free download. The Newtonian mechanics is considered to be valid in all inertial frames of reference, which are moving at a constant relative velocity with respect to each other. Einstein broadened the scope of this theorem and extended the validity of all physical laws including electromagnetic theory to all inertial frames of reference. Now, the constancy of the speed of light in a vacuum is a core consideration in the electromagnetic theory. Therefore, Einstein postulated that the speed of light is a constant in all inertial frames of reference. The speed of light does not depend upon the motion of either the source emitting it or the receiver of the light.
Electricity and Magnetism by Sunil Kumar Singh pdf free download
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