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

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Q. For an R-C impedance function, the residues at all poles are

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Q. In the analogy between electric and magnetic circuits, flux is analogous to

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Q. A two port network is reciprocal if and only if

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Q. Choose the correct option

1. Mesh is the smallest loop of circuit
2. Loop is smallest path of circuit
3. Loop does not contain any mesh
4. Loop may have one or more than one mesh

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Q. Tesla is unit of

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Q. In one time constant, the current in a circuit reaches __________ percent of its final value.

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Q. The capacitance of a cylindrical capacitor is directly proportional to its length.

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Q. In a passive band pass filter, the resonant frequencies of series and shunt arms are equal.

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Q. Which is correct for a transfer function?

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Q. A coil with large distributed capacitance has a

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Q. The voltage transfer functions of two port circuits connected in cascade can be easily found from

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Q. For a transfer function the coefficients of the numerator and denominator polynomials in s must be real.

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Q. A steel bar needs 1200 AT to magnetise it. The voltage that must be applied to the magnetising coil of 100 turns and 10 Ω resistance is __________ volt.

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Q. The function (s + 2) (s + 4)/[(s + 1)(s + 3)]

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Q. The series element of a band stop filter is

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Q. The resistance of human body is about

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Q. At half power frequencies the current in R-L-C series circuit is __________ times current at resonance

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Q. A capacitor behave to d.c. as

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Q. When three 100 K, ± 10% fixed resistors of 1/4 W Power rating are connected in parallel, the resulting 33 K resistor will have a tolerance specification and power rating of

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