The circuit whose properties are same in either direction is known as
Q.2.
For a voltage source
Q.3.
Between the branch voltages of a loop the Kirchhoff's voltage law imposes
Q.4.
Which of the following is a bilateral element?
Q.5.
Kirchhoff s law is not applicable to circuits with
Q.6.
RMS value of i(t) = 10[1 + sin (- t)] is
10
10/2
l50
102
Q.7.
A capacitor is needed for an ac circuit ofV,Hz the peak voltage rating of the capacitor should be
230 V
0.5 x 230 V
2 x 230V
230/2V
Q.8.
A sinusoidal voltage has peak to peak value ofV. The rms value is
50 V
70.7 V
35.35 V
141.41 V
Q.9.
The electrical energy required to heat a bucket of water to a certain temperature is 2 kWh. If heat losses, are 25%, the energy input is
2.67 kWh
3 kWh
2.5 kWh
3.5 kWh
Q.10.
The current rating of a cable depends on
length of cable
diameter of cable
both length and diameter of cable
none of the above
Q.11.
In an ac circuit, the maximum and minimum values of power factor can be
2 and 0
1 and 0
0 and -1
1 and -1
Q.12.
A two branch parallel circuit has aΩ resistance and 1 H inductance in one branch and aμF capacitor in the second branch. It is fed fromV ac supply, at resonance, the input impedance of the circuit is
500 Ω
50 Ω
20 Ω
5 Ω
Q.13.
As compared to the number of network elements in Brune synthesis, the number of network elements Bott-and Duffin in realization is
more
less
equal
any of the above
Q.14.
A current is flowing through a conductor with non-uniform area of cross-section. Then
current will be different at different cross-sections.
current will be the same at all the cross-sections.
current will be different but current density will be same at all the cross-sections
current will be the same but current density will be different at different cross-sections.
Q.15.
The impedance of an RC series circuit isΩ at f=Hz. At f=Hz, the impedance will be
more than 12
less than 3
more than 3 Ω but less than 12 Ω
more than 12 Ω but less than 24 Ω
Q.16.
In an RC series circuit R =Ω and XC =Ω. In this circuit
the current and voltage are in phase
the current leads the voltage by about 6°
the current leads the voltage by about 84°
the current lags the voltage by about 6°
Q.17.
Which of the following is correct for a driving point functions?
The real parts of all poles must be negative
The real parts of all poles and zeros must be negative
The real parts of all poles and zeros must be negative or zero
The real parts of all zeros must be negative
Q.18.
A 3 phase balanced supply feeds 3 phase unbalanced load. Power supplied to the load can be measured by using 2 wattmeterone wattmeter3 wattmeter Which of the above statements is correct?
1 and 2
1 and 3
2 and 3
3 alone
Q.19.
C = ((energy)/V2
True
False
Q.20.
A capacitor stores 0.at 5 V. Its capacitance is
0.75 F
0.75 μF
0.03 F
0.03 μF
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