Q. A constant k low pass filter has fc = 1000 Hz. At f = 500 Hz, the phase shift is

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Q. At resonance the network function magnitude will be

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Q. The voltage of single phase supply to residential consumers in India is

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Q. Power factor of the following circuit will be unity

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Q. For an ideal transformer

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Q. Kirchoff's laws are applicable to

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Q. In an R-C circuit, there is an initial voltage of 3 V across the capacitor. In s domain equivalent circuit, the voltage source to take into account the initial voltage has a strength of

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Q. An electrical network with 8 independent nodes will have __________ nodal equations.

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Q. An RLC series circuit has Y(s) = 2s/(s-p₁)(s-p₁*). If the poles p1 and p1* are close to jω axis, then

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Q. Kirchoff's laws are applicable to

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Q. The double energy transients occur in the

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Q. The capacitance of a parallel plate capacitor varies as per the equation C(t) = C₀ (1 - cos ωt). It is connected to a battery of V volts. The equation for current is

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Q. Which one of the following is a passive device/Component?

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Q. Assertion (A): When a square periodic wave is applied to an RC circuit, the voltage across capacitor is observed to be a triangular periodic wave.

Reason (R): The RC circuit works as integrator and its time constant is much larger than time period of input wave.

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Q. Assertion (A): In a series resonant circuit current is maximum at resonance.

Reason (R): The inductive and capacitive reactances are equal.

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Q. Laplace transform of a unit doublet U-2 (t) is

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Q. Giga watt is equal to

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Q. A 3 phase star-connected load has one capacitor C in R phase and two equal resistances in Y and B phases.The phase sequence is RBY. Then

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Q. Reciprocity theorem is applicable to

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Q. The first and the last critical frequencies (singularities) of a driving point impedance function of a passive network having two kind of elements, are a pole and a zero respectively. The above property will be satisfied by

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