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electronics and communication engineering exam question papers
1. Values of iL, , VC and at t = 0 are given by,
(A): 4 Amp, - 4 Amp/sec, 12 volts, - 4 volts/s
(B): 4 Amp, 4 Amp/sec, -12 volts, - 12 volts/s
(C): 6 Amp, - 2 Amp/sec, 0 volts, - 2 volts/sec
(D): 6 Amp, 0 Amp/sec, - 2 volts, - 2 volts/sec
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By: guest on 02 Jun 2017 12.56 am
For t = 0 + iL(0-) = = 6 A VC(0-) = 0 V For t = 0+ iL(0+) = 6 VC(0+) = 0 Apply KCL at node V 6 - V = (6 + v)2 6 - V = 12 + 2V - 6 = 3V V = VL = - 2V At t = 0+, = -2 ∴ ∴ ∴ iL = 6 Amp VC = 0 V .
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