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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Q. Assertion (A): In a parallel circuit with three branches having R, L and C respectively and fed by a step current I, the current through inductance is always zero.

Reason (R): The time constant of R-L circuit is L/R.

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Q. When a source is delivering maximum power to a load through a network, the ratio of power delivered to the source power

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Q. A two branch parallel tuned circuit has a coil of resistance 100 Ω and inductance 0.005 H in one branch and 10 nF capacitor in the second branch. At resonance frequency, the dynamic resistance is

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Q. If each branch of a Delta circuit has impedance √3 Z then each branch of the equivalent Y circuit has impedance.

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Q. An RLC series circuit has R = 1 Ω, L = 1 H, C = 1 F. The damping ratio is

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Q. In a purely capacitive circuit, the current __________ the voltage by __________ .

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Q. A circuit has two branches in parallel and each branch has only one element. The applied voltage and source current are v = 200 sin (200t + 30°) and i = 50 sin (200t + 50°). If one branch has capacitor, the other branch contains

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Q. If B = 4 + j3, (B)^1/3 =

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Q. The equivalent unit of joule is

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