Q. Assertion (A): The impedance of a series resonant circuit is minimum at resonance.

Reason (R): Resonance condition implies unity power factor condition.

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Q. The internal impedance of a source is 3 + j 4 Ω. It is desired to supply maximum power to a resistive load. The load resistance should be

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Q. The internal impedance of a source is 3 + j 7 Ω. For maximum power transfer, load impedance should be

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Q. A wave trap is a

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Q. In an ac series RLC circuit the maximum phase difference between any two voltages can be

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Q. In a series circuit with XL constant and R variable the current locus lies in the third quadrant.

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Q. One coulomb charge is equal to the charge on

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Q. Two capacitors of 16 μF each are connected in series. Another capacitor of 16 μF is connected in parallel with this combination. The total capacitance will be

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Q. Assertion (A): Operator has a value 1 ∠ - 90° or 1 ∠ 90°.

Reason (R): Operator 'a' has a value 1 ∠ 120°.

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Q. The maximum current and voltage ratings for a 0.5 W, 10 kW resistor are

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Q. The network has 10 nodes and 17 branches. The number of different node power voltages would be

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Q. Two capacitor of 1 F each are connected in parallel. Another 1 F capacitor is connected in series with the parallel combination. The total capacitance is

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Q. The realization of the term Ks yields

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

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Q. If A = 3 + j1 and B = 4 + j3, A + B =

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Q. When a constant voltage source and constant current source are in series, the current source is ineffective.

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Q. A system has transfer function 10/(s+1)(s+2). The dc gain is

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Q. In a series RLC circuit, the current at resonance is I₀ the total energy stored in the circuit at resonance is

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Q. If J, I and a denote current density, current and area of cross section of a conductor, then

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Q. If A = 3 + j1, A⁴

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