Question 1
Marks : +2 | -2
Pass Ratio : 50%
When the temperature of either n-type or p-type increases, determine the movement of the position of the Fermi energy level?
Explanation: whenever the temperature increases, the Fermi energy level tends to move at the centre of the energy gap.
Question 3
Marks : +2 | -2
Pass Ratio : 50%
Which of the following expression represent the correct formulae for calculating the exact position of the Fermi level for p-type material?
Explanation: The correct position of the Fermi level is found with the formula in the ‘a’ option.
Question 5
Marks : +2 | -2
Pass Ratio : 50%
Is it true, when the temperature rises, the electrons in the conduction band becomes greater than the donor atoms?
Explanation: When the temperature increases, there is an increase in the electron-hole pairs and all the donor atoms get ionized, so now the thermally generated electrons will be greater than the donor atoms.