The time dependence of a physical quantity P is given by `P=P_(0) exp (-alpha t^(2))`, where `alpha` is a constant and t is time. The constant `alpha`

Answer

A, B, C

Explanation

Electric flux depends on the total charge enclosed by the closed surface S. Hence flux is related with charge `Q_(1)`. Electric field at a point is the vector sum of the all electric field intensities due to all charges.