Q. To neglect a current source the terminals across the source are

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Q. At very low temperatures, semiconducting materials behave as insulators.

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Q. The series element for a prototype high pass filter is

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Q. The scale factor for half wave and full wave rectifier is __________ respectively.

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Q. The time constant of a series RL circuit is

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Q. An RL impedance function is to be synthesised in second Foster form. The proper function to be expanded is

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Q. Ideally an attenuator pad should not change

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Q. If two networks are connected in series of individual Z parameter as Za and Zb then equivalent Z is

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Q. The model of a system

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Q. Q of a coil

A. increases with Q increasing frequency
B. varies linearly with frequency
C. increase with increasing frequency because R increases at high frequency
D. decrease after the peak frequency because R increases at H.F.

The correct statements are

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Q. The shot circuit admittance matrix of a two port network is

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Q. h parameters are used in transistor analysis.

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Q. At a temperature of 7 K, lead is a superconductor.

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Q. The dynamic impedance of an R-L and C parallel circuit at resonance is __________ ohm.

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Q. The hot resistance of a tungsten lame is about 12 times its cold resistance. Accordingly, the cold resistance of a 60 Ω, 120 V lamp is about __________ ohm.

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Q. The response of a function is decided by

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Q. A choke coil of resistance R and inductance L is shunted by capacitor C. The dynamic resistance is

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Q. In an LC immittance H (s)

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Q. The polar plot of P (jω) = 45° as ω varies from -∞ to ∞ is

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Q. Assertion (A): A graph is planar if it has a dual.

Reason (R): The dual of a graph can be found by window dot method.

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