A series RC combination (capacitor initially,uncharged) is connected to an ideal battery. The time taken by charge to reach 99.99% of its maximum value is closest to : (Given:`ln10=2.303)`

A simple LR circuit is connected to a battery at time t = 0 . The energy stored in the inductor reaches half its maximum value at time

If at t = 0 the switch S_(w) is closed , then the charge on capacitor (initially unchanged)in the given circuit when the current through battery becomes 50 % of its maximum value is (assume battery is ideal)

A C. R series circuit is connected to a battery of e.m.f E. The time required by the capacitor to acquire maximum charge, depends upon -

The inductance of a solenoid is 5 henery and its resistance id 5 Omega . If it is connected to a 10 volt battery then time taken by the current to reach 9//10^(th) of its maximum will be :-

A solenoid has an inductance of 10H and a resistance of 2Omega . It is connected to a 10V battery. How long will it take for the magnetic energy to reach 1//4 of its maximum value?

How many time constants will elapse before the charge on a capacitor falls to 0.1% of its maximum value in a discharging RC circuit.

A solenoid has an inductance of 10 henty and a resistance of 2 ohm. It is connected to a 10 volt battery. How long will it take for the magnetic energy to reach 1//4 of its maximum value?

A solenoid of resistance 50 Omega and inductance 80 H is connected to a 200 V battery, How long will it take for the current to reach 50% of its final equlibrium value ? Calculate the maximum enargy stored ?