B3B041S Pages: 4

11. Draw the oriented graph, select a suitable tree and find the tie-set matrix for the circuit

shown in figure (9). Hence find the currents 11, 12 and I; using mesh analysis.

Figure (9)

PART C
Answer any two questions. Each question carries 10 marks.
12.In the circuit shown in figure (10), the switch is opened at t = 0, steady state
conditions having been established earlier to the switching operation. Find the current

(0 10120.

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10
862
+
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12V

411

Figure (10)

13. In the circuit shown in figure (11), draw the transformed circuit and determine the

current 1200) using mesh analysis. Assume the initial conditions as zeros.

Figure (11)

14. In the circuit shown in figure (12), the switch is closed at t = 0. Determine the voltage

v(t) for t > 0.

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