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Electrical Engineering
Networks Analysis And Synthesis
Quiz 4
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Q.1
A series RC circuit has R = 5 Ω and C =μF. The current in the circuit is 5 sin 20000t. The applied voltage is
252 sin (20000t + 45°)
252 sin (20000t - 45°)
252 sin 20000t
252 sin (20000t - 90°)
Q.2
A 0.5 μF capacitor is connected across aV battery. After a long time, the circuit current and voltage across capacitor will be
0.5 A and 0 V
0 A and 10 V
20 A and 5 V
0.05 A and 5 V
Q.3
Which of the following pairs are correctly matched? Brune's realisation : realisation with ideal transformer.Cauer realisation : ladder realisation.Bott Duffin realisation : with non ideal transformer. Select the answer using the following codes:
1, 2 and 3
2 and 3
1 and 3
1 and 2
Q.4
The synthesis of minimum function was suggested by
O'Brune
R. Richards
Bott and Duffin
none of the above
Q.5
A cable has an insulation resistance ofohms. If the length is doubled, the insulation resistance will be
2 x 1010 Ω
0.5 x 1010 Ω
1010 Ω
4 x 1010 Ω
Q.6
Two networks are cascaded through an ideal buffer. If td1 and td2 are delay times of network, the overall delay time is
td1 + td2
t2d1 + t2d2
td1 + td2
All of above
Q.7
In an R-C series circuit excited by a voltage E, the charge across capacitor at t =is
0
CE
CE (1 - e-t/RC)
none of the above
Q.8
Wave A =sin ωt and wave B =cos ωt. Then
rms values of the two waves are equal
rms values of A is more than that of B
rms values of A is less than that of B
rms values of the two waves may or may not be equal
Q.9
The drift velocity of electrons is
very small as compared to speed of light
equal to speed of light
almost equal to speed of light
half the speed of light
Q.10
The terms RMS and average values apply only to sine waves.
True
False
Q.11
For a transmission line open circuit and short circuit impedances areΩ and 5 Ω. Then characteristic impedance is
100 Ω
50 Ω
25 Ω
10 Ω
Q.12
Henry is equivalent to
Volts/Ampere
Weber/Volt
Weber/Ampere
Weber/Ampere2
Q.13
In a parallel resonant circuit, the circuit current at resonance is maximum.
True
False
Q.14
An RLC series circuit is underdamped. To make it overdamped, the value of R
has to be increased
has to be decreased
has to be increased to infinity
has to be reduced to zero
Q.15
In a minimum function
the degree of numerator and denominator are equal
the degree of numerator and denominator are unequal
the degree of numerator is one more than degree of denominator
the degree of numerator is one less than degree of denominator
Q.16
Superposition theorem can be applied only to circuits having
Resistive elements
Passive elements
Nonlinear elements
Linear bilateral elements
Q.17
A linear resistor having 0 A. current controlled resistor B. voltage controlled resistor C. both current controlled and voltage controlled resistor D. none of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on BoardSuperposition theorem can be applied only to circuits having A. Resistive elements B. Passive elements C. Nonlinear elements D. Linear bilateral elements Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board 1 2 3 4 5 6 7 8 9 10
current controlled resistor
voltage controlled resistor
both current controlled and voltage controlled resistor
none of the above
Q.18
The circuit has resistors, capacitors and semiconductor diodes. The circuit will be known as
Nonlinear circuit
Linear circuit
Bilateral circuit
None of the above
Q.19
For maximum transfer of power, internal resistance of the source should be
Equal to load resistance
Less than the load resistance
Greater than the load resistance
None of the above
Q.20
For high efficiency of transfer of power, internal resistance of the source should be
Equal to the load resistance
Less than the load resistance
More than the load resistance
None of the above
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