Assertion: Electrical conductivity of copper increases with incre… - Vidyadip

MCQ

Assertion: Electrical conductivity of copper increases with increase in temperature

Reason: The electrical conductivity of metals is due to motion of electrons.

A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
✓
If the Assertion is incorrect but the Reason is correct.

✓

Answer

Correct option: D.

If the Assertion is incorrect but the Reason is correct.

d
Electrical conductivity of every metal decreases with increase in temperature due to increase in molecular motion which increases resistance.

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