At `t=0`, an inductor of zero resistance is joined to a cell of emf `varepsilon` through a resistance. The current increases with a time constant `tau`. The emf across the coil after time `t` is

At t=0, an inductor of zero resistance is joined to a cell of emf epsilon through a resistance. The current increases with a time constant tau . After what time will the potential difference across the coil be equal to that across the resistance ?

A coil of inductanece 5H is joined to a cell of emf 6V through a resistance 10 Omega at time t=0. The emf across the coil at time t=ln sqrt(2) s is:

A coil of inductanece 5H is joined to a cell of emf 6V through a resistance 10 Omega at time t=0. The emf across the coil at time t=ln sqrt(2) s is:

An inductor of 3H is connected to a battery of emf 6V through a resistance of 100 Omega . Calculate the time constant. What will be the maximum value of current in the circuit ?

An inductor of 3H is connected to a battery of emf 6V through a resistance of 100 Omega . Calculate the time constant. What will be the maximum value of current in the circuit ?