In the circuit shown, the voltage VIN(t) is described by:

\({V_{IN}}\left( t \right)\; = \left\{ {\begin{array}{*{20}{c}} {0,}&{for\;t < 0}\\ {10\;Volts,}&{for\;t \ge 0} \end{array}} \right.\;\)

where t is in seconds. The time (in seconds) at which the current I in the circuit will reach the value 2 Amperes is ________.