Question

What would happen to the resistance of wood (Insulator) and a transistor (semiconductor) in an increase or a decrease in temperature

Answer 1

Answer:

When temperature is increased in case of a semiconductor the free electron gets more energy to cross the energy gap to the conduction band from the valence band.so now more electrons can go easily to the conduction band so resistance decreases with temperature.

Answer 2

Answer:

it question is 5 marks question