02000EE201092003

links. Obtain fundamental tie-set and cut-set matrices for the graph.

PART C
Answer any two full questions, each carries 10 marks.

12 Determine the current i(t) when the switch is moved from position | to position 28 (10)

t=0. The switch has been in position | for a long time to get steady state values.

13 Derive expression for transient current in a RL series circuit excited with i) DC (10)
voltage and ii) AC sinusoidal voltage by applying Laplace transform.
14 a) Two inductively coupled coils have self inductances L; = 50 mH and ‏مآ‎ 200 mH. (5)
i) Find the value of mutual inductance between coils if the coefficient of
coupling is 0.5.
ii) What is the maximum possible mutual inductance?
b) Plot the transient response of RLC series circuit for various damping conditions with (5)

DC excitation.

PART D
Answer any twofull questions, each carries 10 marks.
15 8) Find 7 parameters of the given two port network. The impedances are Z,;=5kQ, (6)

22-31, Z3=12kQ.

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