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 :

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 capacitor is connected to a battery of 20 V,so that a charge of 100 mu C is obtained at the plates. The capacitance of the capacitor is

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 set of three coils having resistances 10 Omega , 12 Omega and 15 Omega are connected in parallel. This combination is connected in series with series combination of three coils of the same resistances. Calculate the total resistance and current through the circuit, if a battery of emf 4.1 Volt is used for drawing current.

A coil of resistance 5 mu and self inductance 0.2 H is connected in series with a variable capacitor across 30 V, 50 Hz supply. At what value of capacitor resonance will occur? Find the corresponding current.

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?

An LC circuit contains a 20 mH inductor and a 50 mu F capacitor with initial charge of 10 mC. The resistance of the circuit in negligible.Let the instant the circuit is closed be t=0. What is the total energy stored initially ? Is it conserved during LC oscillations ?

A coil having an inductance of 1/pi henry is connected in series with a resistance of 300Ω. if 20 volt from a 200 cycle source are impressed across the combination, the value of the phase angle between the voltage and the current is :