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GATE EC 2021: Revision test Quiz 1

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Question 1

A resistor R and a capacitor 2 μF are connected in series across a 200 V DC supply. Across the capacitor a neon lamp is connected that turns ON when voltage across it is 120 V. The value of R to make the Lamp turn ON 5 sec after the switch closed is _________ M.

Question 2

For the Y-network shown in the figure, the value of R1 in the equivalent -network is _____________________. (ohms)

Question 3

For parallel RLC circuit, which one of the following statements is NOT correct?

Question 4

Consider the following circuit

The voltage across capacitor

___________V

Question 5

Consider the 2 port circuit given below

Hybrid parameter h12 for the circuit is _____.

Question 6

Determine Rth(in Ω) for the network shown below across a and b?

Question 7

consider the following network

Then the expression for current ic(t) is __________

Question 8

In the circuit shown in the figure, the maximum power (in watt) delivered to the resistor R is _______

Question 9

In the circuit shown below, if the source voltage then the Thevenin’s equivalent voltage in Volts as seen by the load resistance RL is

Question 10

The circuit given below was at steady state at t = 0 with switch at position 1. At t = 0, switch is moved to position 2. At t = 0+ voltage across coil is 120 V.

The time taken for 90% of energy stored in inductor to be dissipated is _______ msec.

Question 11

Assume the self inductance in both the coils is 0. The current flowing through the resistance R in the circuit in figure has the form P cos 4t, where P is

Question 12

Consider the following statements S1 and S2
S1: At the resonant frequency the impedance of a series R-L-C circuit is zero.
S2: In a parallel G-L-C circuit, increasing the conductance G results in increase in its Q factor.
Which one of the following is correct?

Question 13

For the given circuit, the initial current through the inductor is i(0) =12A, then find the current for all?

Question 14

In the given circuit, determine the value of (in Siemen’s).

Question 15

consider the following network

The g parameter is
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Aug 11ESE & GATE EC