Q. A current increasing at the rate of 1 A/s is passed through 1 F capacitor. At t = 0, i = 0. The charge stored after 1 second is

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Q. An RL impedance function can also be realized as

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Q. A step voltages is applied to RLC series circuit having R = 2 Ω, L = 1 H and C = 1 F. The transient current response will be

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Q. Class C solid insulators should not be used above 100°C.

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Q. Assertion (A): Superposition theorem can be used to find the output of a full wave rectifier excited by sinusoidal signal sources of different frequencies connected in series.

Reason (R): Superposition theorem is valid for all linear systems.

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Q. The current through a 1 mH inductance is i(t) = 2.56 x 10¯² - 4 x 10³ t for 2 ≤ t ≤ 20 μ sec. The voltage across the inductor is

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Q. A capacitor whose capacitance Ct = C₀ (1- cos ωt) is fed by a sinusoidal voltage v = V₀ sin ωt. The equation for current i is

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Q. Assertion (A): In a circuit having high inductance, reactive power may be more than apparent power.

Reason (R): Reactive power = VI sin θ.

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Q. A two branch parallel circuit has a 10 Ω resistance and 0.5 H inductance in one branch and a 100 μF capacitor in the second branch. It is fed from 100 V ac supply. At resonance, the source current is

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Q. Insulation resistance of a cable is directly proportional to its length.

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Q. For a series RLC circuit bandwidth is ω2 - ω₁ = R/2L.

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Q. If Z(s) = (s² + 1)/s , the network has

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Q. Maximum power transfer theorem finds application in

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Q. In a series L-C circuit fed by ac voltage, voltage drops across L and C are 40 V and 30 V respectively. The supply voltage is

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Q. In a reactance function

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Q. A series resonant circuit has R = 2 Ω, L = 0.1 H and C =10 μF. At resonance applied voltage = 10 ∠0 V. Voltage across inductance is likely to be

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

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Q. Two impedances 10 - j 10 and 10 + j 10 are connected in parallel. Their combined impedance is

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Q. Resistivity of semiconductors is around 100 Ω-m.

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Q. Two capacitors of 20 μF each are in series. The total capacitance is

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