Q. An ac circuit has two branches in parallel. The impedances of the two branches are equal. The p.f. of one branch is 0.8 lagging and 0.8 leading. The overall p.f. is

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Q. When sources of different frequencies feed a network the only method of solution is superposition theorem.

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Q. In a lead acid battery

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Q. Complex poles give rise to oscillatory terms in the response.

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Q. While drawing vector diagram for a series circuit, the reference vector is

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Q. In all insulators the bonding is covalent.

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Q. In a purely resistive circuit the instantaneous power varies from zero to maximum twice in each cycle.

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Q. In a series resonant circuit, the resonant frequency is

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Q. If a function Z(s) has a pole at infinity, then

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Q. A circuit said to be lumped when physical dimensions of all the component are __________ .

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Q. RMS value of a square wave is the same as peak value.

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Q. Out of Metal-film type and Carbon-film type, the one with better tolerance specification is

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Q. The current flowing through a pure capacitor is called displacement current.

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Q. An active network has

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Q. Which of the following material has nearly zero temperature-coefficient of resistance?

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Q. Poor power factor

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Q. If two networks are cascaded then

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Q. When a series RL circuit is switched on to a dc voltage, the rate of change of current is maximum at t = 0.

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Q. At very low frequencies a series R-C circuit behaves as almost purely __________ .

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Q. In a composite filter terminating half sections are used for impedance matching.

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