Exercise: Networks Analysis And Synthesis

Questions for: Networks Analysis And Synthesis

KVL for second loop in figure is
A:
B:
C:
D:
Answer: B

emf induced in loop 2 due to i1 is

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In a resistive ac circuit, the current __________ the voltage by __________ .
A:
lags, 90°
B:
lags, 45°
C:
lags, 0°
D:
leads 90°
Answer: C

In a resistive circuit the current is in phase with voltage, i.e., lags by 0°.

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Three identical coils each having self inductance L are connected in series so that the fluxes of all the three are in the same direction. If mutual inductance between each pair of coils is M, the total inductance of the arrangement is
A:
3 L + 9 M
B:
1.5 L + 3 M
C:
3 L + 3 M
D:
3 L + 6 M
Answer: B

Total inductance = L + L + L + M + M + M + M + M + M = 3L + 6M.

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The resonance frequency of the circuit is
A:
5.4 Kn2
B:
4.5 Kn2
C:
5 Kn2
D:
∞
Answer: B

Leq = 2 + 2 + 2 6 mH

.

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When a 10 K, 10%, 1/4 Ω resistor is connected in series with a 12 K, ± 1%, 1/4 Ω resistor, the resulting combination has the following specifications
A:
22 K, ± 11%, 1/2 Ω
B:
22 K, ± 5.5%, 1/2 Ω
C:
22 K, ± 5.5%, 1/8 Ω
D:
none of these
Answer: B

Req = R1 + R2, maximum.

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