Q. Transformer coil is an insulator.

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Q. Assertion (A): An impulse has very high magnitude but very small duration.

Reason (R): A pulse function is always rectangular.

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Q. The active elements on the positive and negative plates of lead acid battery are:

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Q. For a symmetrical network

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Q. Consider the following statements:

1. Tellegen's theorem is applicable to any lumped network.
2. Reciprocity theorem is applicable to linear bilateral network.
3. Thevenin theorem is applicable to two terminal linear active network.
4. Norton's theorem is applicable to linear active network.

Which of the above statements are correct?

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Q. A network is causal if impulse response is zero for t < 0.

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Q. When an alternating current passes through an ohmic resistance the electrical power converted into heat is

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Q. Volume control found on the front panel of television receivers

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Q. A tie set schedule shows

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Q. A constant k band stop filter has cutoff frequencies of 1000 and 4000 Hz. The attenuation will be maximum when frequency is

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Q. The resonant frequency of a series resonant circuit is

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Q. Twelve resistance each 2 ohm are connected to form a cube, one resistance being in each arm of cube. The resistance between any two diagonally opposite comers is

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Q. Choose the correct option (↔ dual).

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Q. The voltage induced in a loop of wire rotating in a strong and steady magnetic field is

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Q. A cut set schedule shows

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Q. The value of current at resonance in series R-L-C circuit is affected by the value of

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Q. Sometimes the rotating devices in a room having fluorescent lamps appear to be any station. This is due to

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Q. A dependent source

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Q. Fourier transform and F(jω) of a signal f(t) has the property

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Q. If f(t) = δ(t), F(s) =

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