For L-R circuit, the time constant is equal to

During current growth in an L-R circuit the time constant is the time in which the magnitude of current becomes

During current growth in an L-R circuit the time constant is the time in which the magnitude of current becomes

The figure shows an L-R circuit the time constant for the circuit is

The figure shows an L-R circuit the time constant for the circuit is

The growth of current in an L-R circuit in time t=L/r is equal to about __

A current i_(0) is flowing through an L-R circuit of time constant i_(0) . The source of the current is switched off at time t = 0 . Let r be the value of (-di//dt) at time t = 0 .Assuming this rate to be constant, the current will reduce to zero in a time interval of

A current i_(0) is flowing through an L-R circuit of time constant t_(0) . The source of the current is switched off at time t = 0 . Let r be the value of (-di//dt) at time t = 0 .Assuming this rate to be constant, the current will reduce to zero in a time interval of