Define resistivity of a conductor. Expla...

Define resistivity of a conductor. Explain the variation of resistance with temperature in semiconductors.

Answer

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Knowledge Check

Resistivity of a conductor depends upon its:

A

resistance

B

length

C

area of cross-section

D

none of the above characteristics

The resistance of a conductor increases with :

A

increase in length

B

increase in temperature

C

decrease in area

D

all of these .

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