ECE :: Exam Questions Paper
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In the following limiter circuit, an input voltage V1 = 10 sin 100pt applied. Assume that the diode drop is 0.7 V when it is forward biased. The zener breakdown voltage is 6.8 V
The maximum and minimum values of the output voltage respectively are -
Four signals
m1 = cos (ω0t), m2(t) =
cos (ω0t), m3(t) = 2 cos (ω0t) and m4(t) = cos (4 ω0t) are multiplexed by Time Division Multiplexing system. The commutator speed in rps is -
The feedback control system shown in figure is stable for what values of K and T?
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Find the value of ix if each resistance is of 3 Ω and each battery is of 6 V.
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An image uses 512 x 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be
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If
then for this to be true x(t) is __________ . -
A λ/4 long high frequency transmission line is terminated into one impedance ZR. If Z0 be the characteristic impedance of the line, then input impedance Zin is
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and 
[Here ZL = ZR].