He required condition for the Constructive inference path difference should be: (308)
A. Odd integral multiple of λ B. Integral multiple of λ
C. Odd integral multiple of
2
l D. integral multiple of
2
l

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_