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GATE 2022 Toppers Quiz 22

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Question 1

The 6 V zener diode is shown in figure. It has zero zener resistance and a knee current of 5 mA. The minimum value of R so that the voltage across it does not fall below 6 V is

Question 2

If the Fourier coefficient of a periodic signal is which of the following statements about the signal (t) is correct

Question 3

As x is increased from –∞ to ∞, the function

Question 4

The reverse saturation current density and photo current density of a solar cell are 3.6 × 10–11 A/cm2 and 15 mA /cm2 respectively. The open circuit voltage of a solar cell is ________ V.

(Assume thermal voltage VT = 26 mV)

Question 5

x(t) and h(t) are shown in the figure below.

Then x(t)*h(t) will be  when

Question 6

Let the open loop transfer function of a positive feedback closed loop system be ,where K is a non-positive real valued parameter. Consider the corresponding locus of closed loop poles, the value of K at the break away point is ______ (Rounded up to two decimal value)

Question 7

Consider the following network

Find |ZL| for maximum power transfer __________

Question 8

A short–circuited stub is shunt connected to a transmission line as shown in figure. If ohm, the admittance Y seen at the junction of the stub and the transmission line is
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Jan 3ESE & GATE EC