Q.
The plates of a parallel plate capacitor are not. exactly parallel. The surface charge density
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ManipalManipal 2008Electrostatic Potential and Capacitance
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Solution:
Being a conductor, each plate has the same potential at each point. As E∝σ, so surface charge density σ is higher at the closer end because electric field being the conductor gradient of potential is highest where the plates are closest to each other.