A capacitor is being charged from a battery through a `2M Omega` resistor. If it takes 0.5 s for charge to reach half its final value, what is the capacitance of the capacitor ?

A capacitor is being charged from dc source through a resistance of 5M Omega . If it takes 0.5s for charge to reach three-quarters of its final value, what is the capacitance of the capacitor ?

An initially uncharged capacitor C is being charged by a battery of emf E through a resistance R upto the instant when the capacitor is charged to the potential E/2, the ratio of the work done by the battery to the heat dissipated by the resistor is given by :-

A capacitor is connected to a 20 V battery through a resistance of 10 Omega . If is found that the potential difference across the capacitor rises to 2V in 1 mu s . The capacitance of the capacitor is ___________ mu F .

A capacitor is connected to a 20 V battery through a resistance of 10 Omega . If is found that the potential difference across the capacitor rises to 2V in 1 mu s . The capacitance of the capacitor is ___________ mu F .

A capacitor of capacitance 500(mu)F is connected to a battery through a (10 k (Omega)) resistor.The charge stored on the capacitance 2(mu)F are separately charged by a common battery for a long time. The two capacitors are then separately discharged through equal resistors.Both the discharge circuits are connected at t=0.

A capacitor is connected to a 36 V battery through a resistance of 20 Omega . It is found that the potential difference across the capacitor rises to 12.0 V in 2 mu s. Find the capacitance of the capacitor.

LetC be the capacitance of a capacitor discharging through a resistor R. Suppose t_1 is the time taken for the energy stored in the capacitor to reduce to half its initial value and t_2 is the time taken for the charge to reduce to one-fourth its initial value. Then the ratio t_1//t_2 will be