Physics
Upon increasing the temperature, the resistance of a wire :
- decreases
- does not change
- increases
- first increases then decreases
Current Electricity
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Answer
increases
Reason — If the temperature of the wire increases, ions in it vibrate more violently. As a result, the number of collisions increases and hence the resistance of wire increases (i.e., the resistance of the wire increases with the increase in it's temperature.
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