Q. Assertion (A): If Z1(s) and Z2(s) are positive real then Z1(s) + Z2(s) as well as 1/Z1(s) and 1/Z2(s) are positive real.

Reason (R): The poles of a positive real function are real or occur in conjugate pairs.

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Q. A variable resistance R and capacitive reactance XC are connected in series. As R is varied, the locus of Z is

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Q. The dual of a node is

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Q. Pick the correct statement

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Q. The colour on the extreme left in general purpose fixed resistors represents

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Q. When a current flows through a conductor,

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Q. For a series circuit of R and variable XL the admittance locus is

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Q. A series RLC circuit is supplied from a variable frequency source. The resonant frequency is ω₀. The voltage across L is maximum at a frequency

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Q. Current in a 2H inductance in 10e¯ᵗ A. Admittance of the inductor is

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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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