What happens to the coefficient of electrical resistance when we increase the temperature ?

Options :
  1. increases for a doped semiconductor
  2. decreases for a thermistor
  3. may increase or decrease for a pure semiconductor
  4. decreases for a tungsten wire
Answer and Explanation :-

Answer: Option 2

Explanation:

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As you get older, the heart shed its leaves like a tree. You cannot hold out against certain winds. Each day tears away a few more leaves and then there are the storms that break off several branches at one go. And while nature's greenery grows back again in the spring, that of the heart never grows back.
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