Q. When two coupled coils of equal self inductance are cormected in series in one way the net inductance is 12 mH and when they are connected in the other way the net inductance is 4 mH. The maximum value of inductance when they are connected in parallel is

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Q. An R-L series circuit is excited by a voltage v(t). The circuit was initially relaxed. Which of the following sources of v(t) would cause maximum current at t = 0+?

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Q. Power is drawn from a source at power factor 0.7. Pav = 300 watt. The reactive power is

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Q. Two capacitors each of capacitance C and breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination is

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Q. A capacitor can be represented by a capacitance C in parallel with a resistance R. For a good capacitor, the resistance R should be

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Q. If a sheet of a mica is inserted between the plates of an air capacitor, the capacitance

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Q. A circuit has two branches 1 and 2 in parallel. If |Q1| = 8 KVAR and |Q2| = 6 KVAR, the magnitude of total kvar drawn form supply will be

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Q. When a function Z(s) having a pole at infinity is realized, we get

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Q. A specimen of a material has a resistivity of 1.78 x 10⁸ ohm-m. The material is

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Q. If operator 'a' = 1 ∠120° then (1 + a²) =

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Q. Two 2 port circuits are connected cascaded. To determine the response, it is more convenient to use

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Q. For addition and subtraction operations, phasors

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Q. If VA = - 10 V and VB = - 15 V, VAB = 5 V.

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Q. Assertion (A): Tie set schedule is used in nodal analysis.

Reason (R): Loop currents are fictitious quantities.

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Q. When a lead acid cell discharges, the specific gravity of electrolyte increases.

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Q. For a high pass filter, β = π in attenuation band.

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Q. A minimum function has

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Q. A source of angular frequency 1 rad sec has a source impedance consisting of 1 Ω resistance in series with 1 H inductance. The load that will obtained the maximum power transfer is

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Q. When tracing through a resistance we always get a voltage drop.

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Q. A copper coil has a resistance of 40 ohm at 20°C. At 100°C the resistance is likely to be

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