Computer Programming MCQs

5739 MCQs  (Page 214 of 574)

Attempt Computer Programming MCQs Quiz
Four equal-value resistors are connected in parallel. Ten volts are applied across the parallel circuit and 2 mA are measured from the source. The value of each resistor is______________?
A. 12.5 ω
B. 200 ω
C. 20 kω
D. 50 ω
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A 470 Ω resistor, a 220 Ω resistor, and a 100 Ω resistor are all in parallel. The total resistance is approximately________________?
A. 790 ω
B. 470 ω
C. 60 ω
D. 30 ω
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Hartley oscillator is commonly used in______________?
A. Radio receivers
B. Radio transmitters
C. Tv receivers
D. None of the above
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In a phase shift oscillator, the frequency determining elements are _______________?
A. L and c
B. R, l and c
C. R and c
D. None of the above
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The crystal oscillator frequency is very stable due to___________of the crystal?
A. Rigidity
B. Vibrations
C. Low q
D. High q
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The total resistance of a parallel circuit is 50 Ω. If the total current is 120 mA, the current through the 270 Ω that makes up part of the parallel circuit is approximately_______________?
A. 22 ma
B. 120 ma
C. 220 ma
D. 50 ma
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One condition for oscillation is_____________?
A. A phase shift around the feedback loop of 180o
B. A gain around the feedback loop of one-third
C. A phase shift around the feedback loop of 0o
D. A gain around the feedback loop of less than 1
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Five 100 Ω resistors are connected in parallel. If one resistor is removed, the total resistance is______________?
A. 25 ω
B. 500 ω
C. 100 ω
D. 20 ω
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For an oscillator to properly start, the gain around the feedback loop must initially be_________?
A. 1
B. Greater than 1
C. Less than 1
D. Equal to attenuation of feedback circuit
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In a certain three-branch parallel circuit, R1 has 12 mA through it, R2 has 15 mA through it, and R3 has 25 mA through it. After measuring a total of 27 mA, you can say that____________?
A. R3 is open
B. R1 is open
C. R2 is open
D. The circuit is operating properly
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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