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Question
The forbidden energy gap is maximum in
The forbidden energy gap is maximum in
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Solution
The correct option is C an insulator
The free electrons are charge carriers and are reason for conduction of current.Those electrons which can easily get free from nuclear effect and become free to conduct electricity are the free electrons.
Forbidden energy gap is the energy required by the electron in outermost orbit of atom to get free and become a free electron.The less is the forbidden energy gap, more free electron will be there even with small electric field and hence more conductivity.And, more is the forbidden energy gap, there will be lesser free electrons and hence more resistivity.
Insulators have maximum forbidden energy gap, and hence has almost no free electrons and very high resistance.
Answer-(C)
The free electrons are charge carriers and are reason for conduction of current.
Those electrons which can easily get free from nuclear effect and become free to conduct electricity are the free electrons.
Forbidden energy gap is the energy required by the electron in outermost orbit of atom to get free and become a free electron.
The less is the forbidden energy gap, more free electron will be there even with small electric field and hence more conductivity.
And, more is the forbidden energy gap, there will be lesser free electrons and hence more resistivity.
Insulators have maximum forbidden energy gap, and hence has almost no free electrons and very high resistance.
Answer-(C)
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