Question

The energy gap of a semiconductor is 0.7
eV. If the energy received is 0.6 eV, how
many conducting electrons will be formed?
10
5
infinity
zero​

Answer 1

Answer:

infinity

Explanation:

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Answer 2

The correct answer is option (c) infinity.

Explanation:

• The energy difference between the conduction and valency bands is only 0.07 eV, which is extremely small.
• As a result, after gaining a little energy, electrons can readily move from the valence band to the conduction band.
• Then, Infinite conducting electrons will be formed.
• When electrons are stimulated, they can hop up from the valence band into the conduction band, which is a band of electron orbitals.
• The electrons have enough energy to travel freely in the material when they are in these orbitals.
• An electric current is created by the movement of electrons.