Two infinitely long parallel conducting plates having surface charge densities `+ sigma` and `-sigma` respectively, are separated by a small distance. The medium between the plates is vacuum. If `epsilon_(0)` is the dielectric permittivity of vacuum, then the electric field in the region between the plates is

Options

A. `0` `"volts"//meter`
B. `(sigma)/(2epsilon_(0))"volts"//meter`
C. `(sigma)/(epsilon_(0))"volts"//meter`
D. `(2sigma)/(epsilon_(0))"volts"//meter`

Answer

C

Explanation

ltBrgt Electric field between the plates is
`=(sigma)/(2epsilon_(0))-((-sigma))/(2epsilon_(0))`
`=(sigma)/(epsilon_(0))"vol t"//"meter"`