Exercise: Networks Analysis And Synthesis

Questions for: Networks Analysis And Synthesis

In figure, the switch has been in closed position for a long time. At t = 0, the switch is opened. At t = 0+, the current R1 is
A:
8 A
B:
4 A
C:
6 A
D:
2 A
Answer: B
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A black box has one of the elements our of R, L, C. when a 220 V a supply is connected the current supplied by source is I. when a 0.1 F capacitor is connected in parallel with the box, the current is 2I. The element is
A:
resistance
B:
inductance
C:
0.1 F capacitance
D:
not identifiable on the basis of given data
Answer: B
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The Kirchoff's laws fail in which of the following circuits?
A:
Linear circuits
B:
Non-linear circuits
C:
Lumped parameters circuits
D:
Distributed parameters circuits
Answer: D
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In any network of linear impedances the current flowing at any point equal to algebric sum of currents caused to flow at that point by each of the emf taken separately with all other emfs reduced to zero. The statement represents.
A:
KCL
B:
Norton's theorem
C:
Thevenin's theorem
D:
Superposition theorem
Answer: A
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In an R-L-C circuit, v(t) = 20 sin (314 t + 5 p/6) and i(t) = 10 sin (314 t + 2p/3). The p.f of the circuit is
A:
0.5 lead
B:
0.866 lag
C:
0.866 lead
D:
0.5 lead
Answer: B
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