Semiconductor Quiz

Doping of Semiconductors

• materials which can conduct electricity better than insulator, but not as well as conductors.

• The process of adding of a certain amount of specific impurities atoms in the pure semiconductor.

• when 4 electrons in outermost orbit.

which statement is correct? (the dark circles represent the electrons)

• p-type of the diode is connected to the negative terminal.

• Electron moves across the p-n junction, makes the diode forward biased

• current will not flow in the circuit

• reverse biased circuit

The process of adding an impurity to an intrinsic semiconductor is called

• Doping

• Ionization

• Recombination

• Atomic modification

Materials which can conduct electricity better than insulator,but not as well as conductors. This is the definition of

• diode

• semiconductor

• conductor

• insulator

• superconductor

Doping of Semiconductors

• materials which can conduct electricity better than insulator, but not as well as conductors.

• The process of adding of a certain amount of specific impurities atoms in the pure semiconductor.

• when 4 electrons in outermost orbit.

This is a graph that is seen on CRO. How is it change after it flows through diode?

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An atom consists of

• one nucleus and only one electron

• one nucleus and one or more electrons

• protons, electrons and neutrons

The nucleus of an atom is made up of

• protons and neutrons

• electrons

• electrons and protons

• electrons and neutrons

Valence electrons are

• in the closest orbit to the nucleus

• in the most distant orbit from the nucleus

• in various orbits around the nucleus

• not associated with a particular atom

The most widely used semi-conductive material in electronic device

• germanium

• carbon

• cooper

• silicon