02000EE20 1092002

10V

PART C
Answer any two full questions, each carries10 marks.
12 The circuit shown in the figure is initially at steady state, with the switch K (10)

opened. If the switch is closed at time t = 0, determine the expression for the

voltage across the capacitor for t > 0. Also find its final steady state value.

10V

13 a) A series RL circuit with R = 100 and L = 2H is connected toa 20۷ DC supply (5)

at time t = 0. Plot the variation of inductor current and voltage across the

resistor for t > 0 by deriving the expression for the same.

(5)

b) Determine the loop current 1) in the circuit given below.

110

| 4 ۷ rf `
20 ls உ
+ + >
20401 ಗ್ರ “> 8

5 | | I, ५.

A series RLC circuit with R = 50, 1, = 1H and C = 0.25F is connected to a

14 (10)
10۷ DC supply at time ६ = 0. Determine the expression for (i) the current i(t)

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