Exercise: Exam Question Papers

Questions for: Exam Question Papers

For the waveform shown below, the slew rate and full power bandwidth with respect to op-amp will be respectively
A:
0.02 V/μsec, 1.59 KHz
B:
0.04 V/μsec, 1.59 KHz
C:
0.02 V/μsec, 3.58 KHz
D:
0.02 V/μsec, 1.59 KHz
Answer: A

Full power bandwidth

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The system with given pole-zero diagram is __________
A:
Causal
B:
Anti-causal
C:
Both sided
D:
Cannot be determined
Answer: D

Z transform for the pole zero plot will be

Degree of numerator > degree of denominator. Also ROC is not defined.

Hence response of the system cannot be determined.

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The probability density function (PDF) of a random variable X is as shown below

The corresponding cumulative distribution function (CDF) has the form
A:
B:
C:
D:
Answer: A

Cumulative distribution function (Pdf) dx

Then when we integrate the line from (-1, 0) to (0, 1) we get a parabolic curve.

The maximum value of Pdf can be 1.

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Find RL for maximum power transfer.
A:
3 Ω
B:
1.125 Ω
C:
4.1785 Ω
D:
None of these
Answer: A

Use Y - Δ transformation

RAB= (9 || 18) || (9 || 18) = 3 Ω.

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For the network shown below, if VD = 12 V and VGSQ = - 2 V value of RS will be
A:
13.35 kΩ
B:
3.35 kΩ
C:
33.31 kΩ
D:
3.95 kΩ
Answer: B

VGS = VG - IDRS

- 2 = 5.44 - 2.22 X 10-3 X RS

RS = 3.35 KΩ.

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