(a). Calculation the largest possible electrostatic energy in `1cm^(3)` volume of air.t he dielectric breakdown of air happens when field exceeds `3xx10^(6)V//m`
(b). A conducting ball of radius 10 cm is placed in distilled water `(in_(r)=80)` and charged with a charge `Q=2xx10^(-9)C`. Calculated the energy used up in charging the ball.
