Question

Many of the applications of capacitors depend on their ability to store energy.

1. In a charged capacitor energy is stored in the 

• positively charged plate
• negatively charged plate
• electric field between the plates
• none of these

2. Draw a graph showing the variation of charge stored in a capacitor with its potential. How will you calculate the energy stored in the capacitor using the above graph?

Answer 1

1. Electric field between the plates

2. 

Area under the straight line graph gives the energy stored in the capacitor.