What is the effect of light on the conductivi | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In a semiconductor,the energy gap between the valence band and the conduction band is small. When light (photons) falls on the semiconductor,the e

Vedclass · Accepted Answer

It increases

Vedclass · Answer

(B) In a semiconductor,the energy gap between the valence band and the conduction band is small. When light (photons) falls on the semiconductor,the electrons in the valence band absorb energy and jump to the conduction band. This process increases the number of free charge carriers (electrons and holes),which leads to an increase in the electrical conductivity of the semiconductor.

What is the effect of light on the conductivity of a semiconductor used in solar cells?

Similar Questions

Why are solar cookers covered with a glass plate?

The use of dry wood as domestic fuel is not considered good. State two reasons for it.

Mention any four areas where solar cells are being used as a source of energy.

Mention any two differences between the two common designs of solar cooker.

For producing electricity,the energy from flowing water is preferred to energy obtained by burning coke. State two reasons for it.

Vedclass Test Series

Exam Paper Generator

Online Exam Module