Computer Programming MCQs

5739 MCQs  (Page 281 of 574)

Attempt Computer Programming MCQs Quiz
Which of the following is likely to have the largest resistance ?
A. Voltmeter of range 10 v
B. Moving coil galvanometer
C. Ammeter of range 1 a
D. A copper wire of length 1 m and diameter 3 mm
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A voltmeter has a resistance of G ohms and range V volts. The value of resistance required in series to convert it into voltmeter of range nV is________________?
A. Ng
B. G/n
C. G/(n-1)
D. (n-1)g
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A CRO is used to measure _________________?
A. Voltage
B. Frequency
C. Phase
D. All of above
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An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is______________?
A. Ng
B. (n-1)g
C. G/(n-1)
D. G/n
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Current cannot flow to ground through _______________?
A. A mechanical ground
B. An a.c. ground
C. A virtual ground
D. An ordinary ground
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The input stage of an Op-amp is usually a ________________?
A. Differential amplifier
B. Class b push-pull amplifier
C. Ce amplifier
D. Swamped amplifier
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A common-mode signal is applied to ________________?
A. The noninverting input
B. The inverting input
C. Both iputs
D. Top of the tail resistor
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The tail current in a differential amplifier equals ______________?
A. Difference between two emitter currents
B. Sum of two emitter currents
C. Collector current divided by current gain
D. Collector voltage divided by collector resistance
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The input offset current equals the_____________?
A. Difference between two base currents
B. Average of two base currents
C. Collector current divided by current gain
D. None of these
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A voltage follower _____________?
A. Has a voltage gain of 1
B. Is noninverting
C. Has no feedback resistor
D. Has all of these
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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