Physical Significance: The physical significance of Maxwell's equations obtained from integral form are given below: Maxwell's First Equation: 1. The total electric displacement through the surface enclosing a volume is equal to the total charge within the volume. 2. It represents Gauss Law. 3. This law is independent of time. Charge acts as source or sink for the lines of electric force. Maxwell's Second Equation: 1. The total magnetic flux emitting through any closed surface is zero. An isolated magnet do not exist monopoles. 2. There is no source or sink for lines of magnetic force. 3. This is time independent equation. Maxwell's Third Equation: 1. The electromotive force around the closed path is equal to the time derivative of the magnetic displacement through any surface bounded by the path. 2. This gives relation between electric field $E$ and magnetic induction $B$. 3. This expression is time varying i.e. $E$ is generate

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