Computer Programming MCQs

5739 MCQs  (Page 243 of 574)

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If gate current is increased, then anode-cathode voltage at which SCR closes_________________?
A. Is decreased
B. Is increased
C. Remains the same
D. None of the above
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An SCR is turned off when ________________?
A. Anode current is reduced to zero
B. Gate voltage is reduced to zero
C. Gate is reverse biased
D. None of the above
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An SCR has __________ pn junctions?
A. Two
B. Three
C. Four
D. None of the above
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An SCR has ___________semiconductor layers?
A. Two
B. Three
C. Four
D. None of the above
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An SCR is made of_______________?
A. Germanium
B. Silicon
C. Carbon
D. None of the above
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An SCR has three terminals viz ________________?
A. Cathode, anode, gate
B. Anode, cathode, grid
C. Anode, cathode, drain
D. None of the above
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An SCR is a solid state equivalent of ______________?
A. Triode
B. Pentode
C. Gas-filled triode
D. Tetrode
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An SCR is sometimes called ____________?
A. Triac
B. Diac
C. Unijunction transistor
D. Thyristor
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In normal operation of an SCR, gate is _____________w.r.t. cathode?
A. Positive
B. Negative
C. At zero potential
D. None of the above
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An SCR behaves as a____________switch?
A. Unidirectional
B. Bidirectional
C. Mechanical
D. None of the above
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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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