Parallel Plate Capacitor
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Maximum electric field which a dielectric medium can withstand without breakdown and prevent leaking of charge is called dielectric strength. Air dielectric strength is 3 x 10 6 Vm-1.
o SI unit of capacitance is F( Farad).
Parallel Plate Capacitor
A parallel plate capacitor is a capacitor with 2 large plane parallel conducting plates separated by a small distance.
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Electric field inside the capacitor has a direction from positive to negative plate.
For very small‘ d’, the electric field is considered as uniform. For large‘ d’, the electric field is non-uniform and it bends around the corners of the plate which is called fringing of the field.