Circuit at t = 0 and t = ∞

In the circuit shown in Fig. currrent through the battery at t = 0 and t = oo is

The current (i) at time t= 0 and t = oo respectively for the given circuit is :

The switch S is closed in the circuit shown at time t=0 . The current in the resistor at t=0 and t =oo are respectively .

The time constant of an LR circuit is 40 ms. The circuit is connected at t= 0 and the steady state current is found ot be 2.0 A. Find the current at (a) t= 10 ms (b) t =20ms, (c ) t =100ms and (d) t = 1 s.

Switch S is cloesd in the circuit at time t = 0 . Find the current through the capacitor and the inductor at any time t

An LR circuit has L = 1.0 H R =20 Omega . It is connected across an emf of 2.0 V at t=0 . Find di/dt at (a) t =100ms, (b) t =200 ms and (c )t = 1.0 s .

The switch S of the circuit is closed at t = 0. Find the current (in Amp.) through the capacitor when the switch S is closed at t = 0

In an LR circuit, current at t = 0 is 20 A . After 2 s it reduces to 18 A . The time constant of the circuit is :