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NEET UG PHYSICS MCQ: CURRENT ELECTRICITY
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Statement-1: Current flows in a conductor only when there is an electric field within the conductor.
Statement-2: The drift velocity of electrons in the presence of electric field decreases.
Statement-2: The drift velocity of electrons in the presence of electric field decreases.
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Correct option: C
Statement-1 is true, Statement-2 is false
Option C is correct because current flow requires an electric field, but drift velocity increases with the electric field, not decreases.
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(C) The drift velocity does not depend on the applied potential difference to the conductor.
(D) The drift velocity of electron is inversely proportional to the length of the conductor.
(E) The drift velocity increases with the increase in the temperature of conductor.
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(B) The drift velocity is inversely proportional to the area of cross-section of given conductor.
(C) The drift velocity does not depend on the applied potential difference to the conductor.
(D) The drift velocity of electron is inversely proportional to the length of the conductor.
(E) The drift velocity increases with the increase in the temperature of conductor.
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