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GATE-EC-Section-Test-3

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Question 1

Choose the function f(t); –∞ < 1 < + ∞, for which a Fourier series cannot be defined.

Question 2

A fair dice is rolled twice. The probability that an odd number will follow an even number is

Question 3

The condition on R, L and C such that the step response y(t) in figure has no oscillations, is

Question 4

The band gap of Silicon at room temperature is:

Question 5

The direction of arrows shown in case of transistor appears to carry a DC current. Which among the following information is correct?

Question 6

The Boolean expression for the truth table shown is:

Question 7

In the derivation of expression for peak percent overshoot,

which one of the following conditions is NOT required?

Question 8

A device with input x(t) and output y(t) is characterized by: y(t) = x²(t). An FM signal with frequency deviation of 90 kHz and modulating signal bandwidth of 5 kHz is applied to this device. The bandwidth of the output signal is

Question 9

Voltage standing wave pattern in a lossless transmission line with characteristic impedance 50Ω and a resistive load is shown in figure.

The value of Load Resistance is

Question 10

For an npn transistor connected as shown in figure, V_BE = 0.7 Volts. Given that reverse saturation current of the junction at room temperature 300 °K is 10^-13 A, the emitter current is

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ESE & GATE EC Control Systems

Nov 28ESE & GATE EC