Question

How does the resistance of the following change with the rise in temperature? a) Pure metals b) Nichrome c) Carbon.

Answer 1

Answer:

c is the correct ans

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Answer 2

Answer:

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Explanation:

a) Pure metal - Pure metal resistance increases with higher temperature as the electrons thermal energy increases with higher temperature, thus their random motion increases, resulting in an increased resistance. ... The substances whose resistance changes with little changes in temperature are Platinum, Nichrome, Mercury.

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