When Silicon Is Doped with Gallium, Electrical Conduction Increases Because

question 138

Multiple Choice

When silicon is doped with gallium, electrical conduction increases because ________

• A)gallium has fewer valence electrons than silicon, so holes are created in the valence band of silicon.
• B)gallium has more valence electrons than silicon, so electrons are added to the conduction band of silicon.
• C)gallium causes electrons to be transferred from the valence band of silicon to the conduction band of silicon.
• D)gallium causes electrons to be transferred from the conduction band of silicon to the valence band of silicon.
• E)gallium is a better conductor of electricity than silicon.

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