A conductor has a charge of `0.5 muC ` and at potential of 20 v. Another uncharged conductor, whose capacity is `0.015muF` is momentarily connected to the first and then separated. Calculate the charges carried by each after contact and what is the value of the common potential.

A capacitor carring a charge equal to 2muC up to a potential 100 V is put into contact with another capacitor carrying a charge of 1.5mu C up to a potential of 60 V. What is the resulting potential, the charge carried by each, the total energy before and after connection?

A conductor of capacity 4 units, charged with 100 units of positive charge is connected to another conductor of capacity 2 units, charged with 20 units of negative charge. What is the change in potential of each conductor ? What will be the charges of each of them after connection?

If a conductor has a potential V ne 0 and there are no charges anywhere else outside then,

A hexagon of side 0.1 m has a charge 10 mu C at each of its vertices. Calculate the electric potential at the centre of the hexagon.

A 20muF capacitor is charged to 30 V of potential. The battery is then disconnected and a 200 mH of coil is connected across it, so that LC oscillations are set up. Calculate the frequency of the oscillations are set up. Calculate the frequecy of the oscillatios set up and the maxium current in the coil.

A capacitor of 20 muF charged uptp 500 V is connected in parallel with another capacitor of 10 muF which is charged upto 200 V. The common potential is

Two insulated spherical conductors of radii 5.0 cm and 10.0 cm are charged to potentials of 600 V and 300 V respectively. Calculate the total energy of the system.

A parallel capacitor has capacitance 20muF . A potential difference of 220 V is applied across it. Calculate the charge on the plates and energy stored in the capacitor. If a dieletric slab of dielectric constant 5 is introduced between its plates, calculate the new value of potential difference and the energy stored.

An air capacitor has an area of 1,000 cm^2 and the two plates are 4 mm apart. It is connected in series with another capacitor having a plate ares of 20 cm^2 , the plates being separated by a dielectric 0.1 mm thick having dielectric constant o 2.5 . If the potential difference across the second capacitor is 100 V, find the voltage applied across the series combination.