Question

The electric flux for Gaussian surface `A` that enclose the charge particles in free space is (given `q_(1)= -14nC,q_(2)= 78.85nC,q_(3)= -56nC)`

A. `10^(3)Nm^(2)C^(-1)`
B. `10^(3)CN^(-1)C^(-2)`
C. `6.32xx10^(3)Nm^(2)C^(-1)`
D. `6.32xx10^(3)CN^(-1)m^(-2)`

Answer 1

Correct Answer - a
Flux is due to charges enclosed per `epsilon_(0)`
`:.` Total flux `=(-14+78.85-56)nC//epsilon_(0)`
`=8.85xx10^(-9)Cxx(4pi)/(4piepsilon_(0))= 8.85xx10^(-9)xx9xx10^(9)xx4pi`
`1000.4Nm^(2)//Ci.e., 1000 Nm^(2)C^(-1)`