A capacitor is connected to the D-C source. How do the conduction and displacement currents set up, compared with each other:- during the charging up process?

A capacitor is connected to the D-C source. How do the conduction and displacement currents set up, compared with each other:- after the capacitor gets fully charged?

A 500 pF capacitor is charged by a 100V supply. It is then disconnected from the supply and is connected to another uncharged 500pF capacitor. How much electrostatic energy is lost in the process?

A 600 pF capacitor is charged by a 200 V supply. It is then disconnected from the supply and is connected to another uncharged 600 pF capacitor. How much electrostatic energy is lost in the process ?

If the plates of a charged capacitor are suddenly connected to each other by a wire, what will happen?

A 100 mu F capacitor is charged with a 60 V source supply.Then source supply is removed and the capacitor is connected across an inductance,as a result of which 6 A current flows through the inductance.Calculate the value of the inductance.

Read the following paragraph and answer the questions given below it: The resistance of a metal falls when cooled below room temperature. Many scientists believed that the value of the resistance would become constant at some very low temperature, allowing the current to flow with little or no resistance. H. K. Onnes successfully liquefied helium in 1908 by cooling it to about 4 K. In 1911, while investigating the electrical property of very pure mercury. Onnes discovered that at a temperature of 4.2 kelvin, its resistance practically vanished. This new state, on account of its extraordinary property, is now called the superconducting state and the phenomenon is called superconductivity. A superconductor, below a certain critical temperature, offers almost zero resistance to a flow of current through it. Onnes also discovered that a superconductor exhibits persistent current: once set up, the current continues to flow for a very long time without an electric potential difference driving it and without significant loss. Superconductivity is used in many diverse areas, such as magnetically levitated trains, transmission of electricity, increasing speed of computers, in MRI (magnetic resonance imaging). Name any two applications of super-conductivity.

A 10 muF capacitor is charged to a 25 volt of potential.The battery is disconnected and a pure 100 mH coil is connected across the capacitor so that LC oscillations are set up. Calculate the maximum current in the coil.

A 16 μF capacitor is charged to a 20 volt potential. The battery is then disconnected and a pure 40 mH coil is connected across the capacitor so that LC oscillations are set up. The maximum current in the coil is :