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Physics
As the temperature increases, the electrical resistance :
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Q. As the temperature increases, the electrical resistance :
NEET
NEET 2022
Current Electricity
A
decreases for conductors but increases for semiconductors
15%
B
increases for both conductors and semiconductors
16%
C
decreases for both conductors and semiconductors
8%
D
increases for conductors but decreases for semiconductors
61%
Solution:
For conductors $\alpha$ is (+)ve
For semiconductors & Insulators $\alpha$ is (-)ve