Question

A parallel plate capacitor consists of two circular plates each of radius `12 cm` and separated by `5.0 mm`. The capacitor is being charge by an external source. The charging current is constant and is equal to `0.15` A. The rate of change of potential difference between the plate will be
A. `8.173xx10^(7) Vs^(-1)`
B. `7.817xx10^(8)Vs^(-1)`
C. `1.173xx10^(9)Vc^(-1)`
D. `3.781xx10^(10)Vs^(-1)`

Answer 1

Correct Answer - c
`(dV)/(dt)=(I)/(c)=(Id)/(epsilon_(0)A)`
By this waves will just pass without reflection taking place.