electric potential and capacitance

Electric potential at a point due to a point charge  

Electric potential energy

Relation between electric field and electric potential (potential gradient)

potential due to dipole

At a point on equatorial line  

Potential at any arbitrary point  

Capacitance of a parallel plate capacitor  

Energy stored in capacitor

Energy stored in capacitor

Energy stored in capacitor

Energy density

Capacitance of parallel plate capacitor with dielectric slab between the plates

Capacitance of a parallel plate capacitor with conducting slab between the plates

Capacitors- series combination

Capacitors- parallel combination

Common potential

Loss of energy of sharing charges