JEE Main 2014 Physics question
A parallel plate capacitor is made of two circular plates separated by a distance of 5 mm and with a dielectric of dielectric constant 2.2 between them. When the electric field in the dielectric is V/m, the charge density of the positive plate will be close to -
Answer: (D)
Solution
\frac{σ}{Kε_0}10^{-12}$
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