A parallel plate capacitor is made of tw...

A parallel plate capacitor is made of two circular plates separated by a distance 5mm and with a dielectric of dielectric constant 2.2 between them. When the electric field in the dielectric is `3xx10^4V//m` the charge density of the positive plate will be close to:

` 6 xx 10 ^( -7) C//m^ 2 `

` 3xx 10 ^( -7) C//m ^ 2 `

` 3 xx 10 ^( 4 ) C//m^ 2 `

`6 xx 10 ^( 4 ) C//m^ 2 `

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