Exercise: Exam Question Papers

Questions for: Exam Question Papers

The multiplication of two n bit numbers gives a product of length less than or equal to
A:
n bits
B:
2n bits
C:
2n bits
D:
2n - 1 bits
Answer: B
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By what name is the equation Δ . J = 0 frequency known?
A:
Poisson's equation
B:
Laplace's equation
C:
Continuity equation for steady currents
D:
Displacement equation
Answer: C
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Assertion (A): A rectifier with inductor filter is more efficient for high load current.

Reason (R): In rectifier with inductor filter we can use a larger choke to reduce ripple, larger choke will have higher dc resistance which will result in lower dc output voltage for higher load current.

A:
Both A and R are individually true and R is the correct explanation of A
B:
Both A and R are individually true but R is not the correct explanation of A
C:
A is true but R is false
D:
A is false but R is true
Answer: A
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Which of the following statements is true regarding the fundamental mode of the metallic waveguides shown?
A:
Only P has no cutoff- frequency
B:
Only Q has no cutoff- frequency
C:
Only P has no cutoff- frequency
D:
All there have cut-off frequency
Answer: A
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Consider the following circuit using an ideal OP-AMP. The I-V characteristics of the diode is described by the relation where VT = 25mV, I0 = 1mA and V is the voltage across the diode (taken as positive for forward bias). For an input voltage V1 = - 1 V, the output voltage V0 is
A:
0 V
B:
0.1 V
C:
0.7 V
D:
1.1 V
Answer: B
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