Q. A series RL circuit is initially relaxed. A step voltage is applied to the circuit. If t is the time constant of the circuit, the voltage across R and L will be same at time t equal to

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Q. In figure, the transmission parameters are A = C = 1, B = 2 and D = 3. Then Zin =

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Q. A sinusoidal voltage is written as v = Im (R² + XC²)^0.5 sin 314 t. Its peak value and frequency are

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Q. KVL equation for the circuit of figure is

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Q. In figure the rms value is

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Q. The frequency at which maximum voltage occurs across the inductance in R-L-C series circuit is

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Q. In figure, the value of R should be

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Q. In the network shown in figure, the voltage drops across R2 and R3 are 10 V and 16 V with polarities as shown. The current in R1

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Q. The V-i relation for a varistor is

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Q. The energy dissipated W in a resistance having voltages v and current i is given by

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Q. In figure, the current through 2 Ω resistance is

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Q. The frequency at which maximum voltage occurs across the capacitance in R-L-C series circuits is given by

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Q. At resonance, the parallel circuit constituted by an iron-cored coil and a capacitor behaves like

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Q. In figure, the current I

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Q. Which of the following is/are correct? The circuit shown in the figure.

1. is reciprocal
2. has Z11 = 2, Z22 = 2
3. has Z11 = 4, Z22 = 2
4. has Z11 = 0, Z22 = 2

Select the correct answer using the code given below:

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Q. In the figure shown, assume that all the capacitors are initially unchanged and Vi(t) = 10 U(t) volts then V0(t) is given by

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Q. For the network in figure, the correct loop equation for loop 3 is

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Q. In the below circuit, if the power dissipated in the 6 Ω resistor is zero then V is

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Q. In figure, the switch S is initially open and steady state conditions are reached. At t = 0 switch is closed. The initial current through 2C capacitor is

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Q. In the circuit of figure the current through 5 Ω resistance at t = ∞ is

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