Suppose that the electric flux inside a parallel plate capacitor changes at a rate of `7xx10^(14)` units/sec, then the magnetic induction field density at any points inside the capacitor is,
[Area of the plate of the capacitor=`1 m^(2)`
Permittivity of free space =`8.8xx10^(-12)Nm^(2)c^(-2)`
Permeability of free space =`4pixx10^(-7)`Teslam/Amp]

Options

A. `7.79 xx 10^(-3)` T
B. `0.779 xx 10^(-5)` T
C. `8.85 xx 10^(-4)` T
D. `8.85 xx 10^(-12)` T

Explanation

Point where 'B' to be calculated is not mentioned.
On surface `intB.dl=mu_(0)(varepsilon_(0)(dphi)/(dt))`
`rArr " " B(2pir)=(1)/(C ^(2))xx(dphi)/(dt)`
`rArr " " 2 xx 10^(-3)T`