A ______ is a semiconductor component that can either be used as switch or an amplifier....? Mcqs

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A ______ is a semiconductor component that can either be used as switch or an amplifier....?

(A) Three pine shoe
(B) Transistor

(C) Reflector
(D) Dipole

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You can sprinkle iron filings around a magnet. Where will iron filings be attracted more...?

(A) At the center of the magnet
(B) Equally all over the magnet

(C) Nowhere, as iron filings are not attracted to magnets
(D) At the poles

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What is the first element in the periodic table...?

(A) Hydrogen
(B) Helium

(C) Nitrogen
(D) Carbon

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Which is least Conductor of Electricity among the following...?

(A) Wood
(B) Copper

(C) Iron
(D) Water

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Vacuum tubes have been replaced by__________...?

(A) Conductors
(B) Diodes

(C) Transistors
(D) None of these

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‘Cyborg’ term mostly used in Science-fiction movies describes:...?

(A) A human being whose physiological functions are aided by artificial means
(B) A Bionic Human

(C) An individual with artificial parts
(D) All of Above

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A photostat machine works on _____________...?

(A) electromagnetic image making
(B) magnetic image making

(C) thermal image making
(D) electrostatic image making

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Pregnancy time period of “mice” is ___________...?

(A) 2 weeks
(B) 2.5 weeks

(C) 3 weeks
(D) 4 weeks

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What is the chemical formula for Sulfuric acid...?

(A) C2H6O
(B) CaSO4

(C) C2H4O2
(D) H2SO4

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What is the main function of red blood cells in the human body...?

(A) Transportation of carbon monoxide
(B) Transportation of oxygen

(C) Transportation of carbon dioxide
(D) Transportation of methane

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