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1.  A point charge of 6 μC is located at the origin, uniform line charge density of 180 nC/m of 8 m length lies along the x axis and a uniform sheet of charge equal to 25 nC/m^{2} of area p x 4^{2} lies in the z = 0 plane. Calculate total electric flux leaving the surface of sphere of 4 m radius centered at origin. 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: According to Gauss's law total flux leaving the closed surface is equal to the charge enclosed by the closed surface Q_{encl} = (6 x 10^{6}) + (8 x 180 x 10^{6}) + (p x 4^{2} x 25 x 10^{9}) = (6 x 10^{6}) + (1.44 x 10^{6}) + (1.257 x 10^{6}) = 8.697 μ Coulombs. Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
2.  Z = __________ 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Output of first MUX = A(B + C) Output of second MUX = C D + A B). Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
3.  The following circuit is implementation of:


Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Let the two bits be A and B. Then the truth table be:
Now it is evident from the truth tables that Sum and Difference are same. Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
4.  The probability density function of a random variable x is as shown. 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: Mean of the distribution =
A = 1/5 then find mean. Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
5.  With respect to the following 555 timer circuit what will be the value of R_{A} and R such that the LED turns on for a duration of 10 ms every time it receives negative trigger pulse. LED operating current = 20 mA, V_{f} = 1.4 V, Vo _{on} = 13.4 V and C = 0.22 nf 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: Timer operated in mono, mode R_{A}C = ∴ R_{A} = 41.4 KΩ R = = 600 Ω. Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
6.  Given f = GEF + KHIJ + LMON + TUVWXYZ and
Then f is equivalent to 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: (UVW ⊕ WVU) = 1 = KJ(XY ⊕ XY) ∴ KJ = 1 NAND B
∴ HI = 1 Since f = GEF + 1 + LMON + TUVWXYZ = 1. Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
7.  The circuit shown in the figure has 4 boxes each described by inputs P, Q, R and outputs Y, Z with 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: Let P = 1101 Q = 1101 Y_{n} = P_{n} ⊕ Q_{n} ⊕ R_{n} Z = R_{n} Q_{n} + P_{n} R_{n} + Q_{n} P_{n} Constructing truth table So that, R_{n + 1} = Z_{n} 1 ≥ n ≥ 3 Z_{4} = R_{5}(MSB) Hence, output is 00010 which show that it is a 4 bit subtractor giving P  Q. Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
8.  The value of the integral of the function g(x, y) = 4x^{3} + 10y^{4} along the straight line segment from the point (0, 0) to the point (1, 2) in the xy plane is 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: (4x^{3} + 10y^{4}) y = 2x ⇒[4x^{3} + 10(2x)^{4}]dx = 33 Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
9.  The eigen values of a skew symmetric matrix are 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: For a real skew symmetric matrix the nonzero eigen values are all pure imaginary and thus occurs in complex conjugate pair. Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
10.  A switch tail ring counter is made by using a single D FF. The resulting circuit is a 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: In both case input will always opposite to each other hence it is D FF. Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
11.  A transmitter radiates a power 20 KW and its base current is 18A. The radiation resistance of the antenna is 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: . Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
12.  The Thevenin resistance of the circuit is 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Diode is the nonlinear element Find R_{TH} across diode short voltage supplies. R_{AB}= R_{TH} = 3K + (2K  1K) . Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
13.  Assertion (A): The small signal analysis of a transistor amplifier is done to obtain the current gain, voltage gain and the conversion efficiency of an amplifier. Reason (R): The small signal analysis of a transistor amplifier uses the small signal parameters of the transistor. 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
14.  Consider the following, logic diagram : 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
15.  Which one of the following driving point functions does not represent an LC network? 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
16.  The preemphasis in FM aids in providing extra noise immunity by 

Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
17.  Which of the following circuits come under the class of sequential logic circuits?


Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
18.  Which of the following factors are responsible to design IC logic gates to operated at a fixed supply voltage of 5 volts?


Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
19.  For the circuit shown in the given figure, assuming ideal opamps, the output corresponding to the given input will be : 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 
20.  Step responses of a set of three secondorder underdamped systems all have the same percentage overshoot. Which of the following diagrams represents the pole of the three systems? 

Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Exam Questions Papers Discuss about this problem : Discuss in Forum 