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BARC Quiz 7

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Question 1

Which of the following represents TM mode pf propagation ?

Question 2

At 125⁰ C, a p-n junction diode has a reverse saturation current of 20 µA. Now, at the same temperature and voltage equal to 0.1 volt, determine the dynamic resistance in both direction.

Question 3

The function f(x, y) = x²+y²+6x+12 has minimum value at the point

Question 4

A function is given as f (A, B, C) = ∑m (0,2,3,7) + ∑d (1,6). What will be the Boolean expression.

Question 5

A NBFM and an AM wave centered at same frequencies and having same absolute power components are received by a receiver. These signals are processed in such a way by the receiver so that the absolute amplitudes of the signals in input are added in frequency domain and further the output received can be shown as Y(f) = 0.5( X(f) + X(-f) ). The resultant signal is