ECE :: Exam Questions Paper
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The reduced form of the function
X(E, A, B, C, D) = ∑(0, 1, 2, 3, 4, 7, 8, 9, 10, 12, 15, 16, 17, 18, 19, 20, 23, 24, 25, 26, 28, 31) is -
Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values range from x = - ∞ to x = + ∞. The Cdf (Cumulative distribution function) for x ≥ 0 is :
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The electric field of uniform plane wave is given by E = 20 sin (2 p x 108t- pz)
x + 20 cos (2 p x 108t - pz) y. The corresponding magnetic field is -
A n-type silicon sample contains a donor concentration of Nd = 2 x 1016 cm-3. The minority carrier hole lifetime is tp0 = 5 μs. The thermal equilibrium generation rate of hole is:
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VL = 100 cos (10t + 30°)
R = 10 Ω XL = j10 Ω
XC = - j4 Ω
Find Vs -
4 point DFT for x(n) = {2, - 1, 2, 3} is
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In a series LCR circuit the maximum inductor voltage is twice the maximum capacitor voltage however current lags by 30° and drop across the inductance is vL = 100 sin 377t V. Assuming the resistance being 20 Ω, Find the values of the capacitance and inductance.
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In 8085 microprocessor based system running at 3 MHz clock frequency what should be the minimum pulse width of the INTR signal, so that it is recognized successfully?
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...(iii)
- 100i2 = 100
= 2.3 mA ≈ IC 
x 106 = 0.333 μs