Question

Solar panels convert light energy from sunlight into electrical energy. What material is most likely used in solar panels, and why?
A.) A nonmetal is used because it is a semiconductor and can become more conductive when more light shines on it.

B.) A metalloid is used because it is a good conductor but can become less conductive when more light shines on it.

C.) A metalloid is used because it is a semiconductor and can become more conductive when more light shines on it.

D.) A nonmetal is used because it is a poor conductor but can become more conductive when more light shines on it.

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Which properties are characteristic of metalloids?

A.) high electrical conductivity and a high melting point

B.) low electrical conductivity and a low melting point

C.) intermediate conductivity and a high melting point

D.) intermediate conductivity and a low melting point

Answer 1

C.) A metalloid is used because it is a semiconductor and can become more conductive when more light shines on it.
Nonmetals do not conduct energy any way and you want the metalloid to be conductive so it can provide you with energy. 


C.) intermediate conductivity and a high melting point
It conducts electricity fairly well.

Hope this helps.