(A): The drift velocity of electrons in a metallic wire will decrease, if the temperature of the wire is increased. (R): On increasing temperature, conductivity of metallic wire decreases.

(A): The drift velocity of electrons in a metallic wire will decrease,

1.	(A): The drift velocity of electrons in a metallic wire will decrease, if the temperature of the wire is increased. (R): On increasing temperature, conductivity of metallic wire decreases.
Answer» Both 'A' and 'R' are true and 'R' is the correct EXPLANATION of 'A' Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A' 'A' is true and 'R' is false 'A' is false and 'R' is false Answer :B

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(A): The drift velocity of electrons in a metallic wire will decrease, if the temperature of the wire is increased. (R): On increasing temperature, conductivity of metallic wire decreases.

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