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Q#1
Network Basics
GATE EE 2008
MCQ
+2 marks
-0.66 marks
The capacitor charged up to 5µs, as per the current profile given in the figure, is connected across an
inductor of 0.6mH. Then the value of voltage across the capacitor after 1µs will approximately be
18.8V
23.5V
−23.5V
−30.6V
Explanation:
Since, 
Voltage across the capacitor at this instant [before connecting inductor]
When inductor is connected, circuit will have inductor & capacitor only. So sinusoidal current & voltage will be produced due to LC oscillations.
Note: This can be derived using Laplace Transform else remember this expression whenever capacitor is initially charged to a certain voltage.
Frequency, 
At 
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