Current Electricity and Electrical InstrumentHard
Question
For the circuit shown, the switch ′K′ was closed for a long time till steady state condition reached. At time t = 0, the switch K is opened, then the current through inductor as a function of time will be
Options
A.5 cos 100 t
B.10 cos 100 t
C.5 cos 1000 t
D.10 cos 1000 t
Solution
ω = 
= 103 rad/s;
I =
cos ωt = 
cos ωt = 
cos(103t) = 5 cos 1000 t
= 103 rad/s;I =
cos ωt = cos ωt = cos(103t) = 5 cos 1000 tCreate a free account to view solution
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