61
What will be the equivalent conductance G of the circuit shown below. G1, G2 and G3 are the conductance of individual circuit branch
Answer: G = G1 + G2 + G3
Questions
62
Which of the following conditions is true for even function?
Answer: ƒ(t) = ƒ(-t)
63
The Fourier series expansion of an odd periodic function contains
Answer: Sine terms
64
The phasors for which of the following pair are 180° out of phase for VL, VC and VR ?
Answer: VC and VL
66
If resistance is 10Ω and inductance is 1 H in an RL series circuit. What will be the time constant of this series RL circuit?
Answer: 0.1 second
67
Which of the following statement is true?
Answer: Resistive circuit is a dual pair
69
A pulse of T seconds width is applied to an RC circuit. What kind of circuit will be required to produce a ramp response ?
Answer: (b) or (c)
72
The Laplace transform of the function ƒ(t) = sinβt is given by
Answer: β/s+β2
75
An RC network is shown blow, can be used as high pass and low pass filter as well. For which of the condition lower cut-off frequency occurs as high pass filter ?
Answer: ER= 0.707 ES
76
In the vector diagrams shown in Q.160, diagram (a) corresponds to
Answer: Pure resistive circuit
77
In the above question, if the capacitors are connected in parallel, what will be the net capacitance ?
Answer: 40 μF
78
If two capacitors with 20 μF capacitance each are connected in series. What will be the net capacitance of the circuit ?
Answer: 10 μF
79
For which of the following parameter variation, the capacitance of the capacitor remains unaffected ?
Answer: Thickness of the plates
80
If the effective voltage of the sinusoidal voltage is 11 volts. What will be the average value of sinusoidal voltage ?
Answer: 10 volts
