Question

What does mean by energy stored in capacitor?
 Prove that-
"The ratio of change in potentials of conductors after connecting two charged conductors is inversely proportional to their capacitances".
 Draw a curve between electric field and distance for an uniformly for an uniformly charged non-conducting sphere. 

Medium

Solution

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Energy stored in a capacitor : A capacitor is a device to store energy. The process of charging up a capacitor involves the transferring of electric charges from its one plate to another.The work done in charging the capacitor is stored as its electrical potential energy.  Consider two insulated conductor A and B of capacitance and carrying charges and .  Let and be their respective potentials.
and
If connect with wire charge flow higher to lower potential 
Total charge on system
Total capacitance


Electric field distance curve by uniformly charged non- conducting sphere.
E outside

inside

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Solve any question of Electrostatic Potential and Capacitance with:-

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