Exercise: Networks Analysis And Synthesis

Questions for: Networks Analysis And Synthesis

Thevenin's theorem is used to find current in a branch of a network. It is now desired to find current in another branch of the network
A:
the same Thevenin's circuit can be used
B:
the same Thevenin's circuit with some modification can be used
C:
it is necessary to find new Thevenin's circuit
D:
either (b) or (c)
Answer: C

Thevenin's equivalent circuit with respect to particular terminals only.

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Two capacitors of 20 μF each are in series. The total capacitance is
A:
5 μF
B:
10 μF
C:
40 μF
D:
400 μF
Answer: B

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Resistivity of semiconductors is around 100 Ω-m.
A:
True
B:
False
C:
D:
Answer: B

Resistivity of semiconductors is about 1 ohm-m.

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Two impedances 10 - j 10 and 10 + j 10 are connected in parallel. Their combined impedance is
A:
5 + j5
B:
5 - j5
C:
10 + j0
D:
20 - j10
Answer: C

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If A = 3 + j1 and B = 4 + j3, A - B =
A:
8.062 ∠29.7°
B:
10 ∠45°
C:
2.236 ∠243.43°
D:
6.72 ∠243.43°
Answer: C

A - B = - 1 - j2 = 2.236∠243.43°.

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