Assertion :-The drift velocity of electrons in a metallic wire will decrease, if the temperature of the wire is increased.
Reason :-On increasing temperature, conductivity of metallic wire decreases.

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Both ‘A’ and ‘R’ are true and ‘R’ is correct explanation of ‘A’

‘A’ is false but ‘R’ is true

‘A’ is true but ‘R’ is false

Both ‘A’ and ‘R’ are true and ‘R’ is not the correct explanation of ‘A’

answer is B.

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