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Q#1
Transient Analysis
GATE EE 1996
MCQ
+1 mark
-0.33 marks
In the series RC circuit shown in figure the voltage across C starts increasing when the d.c. source is switched on. The rate of increase of voltage across C at the instant just after the switch is closed
(i.e., at 
), will be
zero
infinity
RC
1/RC
Explanation:
At t < 0 : switch is open so the capacitor is uncharged.
Since, voltage across capacitor cannot change instantaneously.
Just after t = 0, current in capacitor
Applying KVL at 
Putting the value of 
& 
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