Q.
The Maxwell's four equations are written as
(i) $\int E \cdot ds =q / \varepsilon_{0}$
(ii) $\int_{S} B \cdot ds =0$
(iii) $\int_{S} E \cdot d l =-\frac{d}{d t} \int_{s} B \cdot ds$
(iv) $\int B \cdot d l =\mu_{0} I+\mu_{0} \varepsilon_{0} \frac{d}{d t} \int_{ s } E \cdot ds$
The equation which have sources of $E$ and $B$ are
Electromagnetic Waves
Solution: