Semiconductor Diode

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

• diode

• semiconductor

• conductor

• insulator

• superconductor

Which is not one of the properties of semiconductor?

• 4 electrons in outermost orbit, in covalent bonding.

• atoms vibrate causes electron to break free from the bonds.

• Electron free leaves hole.

• Semiconductor has 2 types of charge carriers.

• all of the above are the properties of it

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.

These are the characteristics of pentavalent impurities except

• •5 valence electron.

• •contributing extra free electrons.

• •produce n-type semiconductors.

• •produce p-type semiconductors.

These are the characteristics of Trivalent impurities except

• •3 valence electrons

• •produce p-type semiconductors

• •producing a "hole".

• Boron, aluminium and gallium are the examples.

• Antimony, arsenic, and phosphorus are the examples

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

what is the meaning of rectification?

• a process of smoothing using a capacitor

• a process of adding impurities to pure materials

• a process of converting an alternating current into a direct current by using a diode.

The diagram is a process

• of doping

• of adding impurities

• of half-wave rectification

• of full-wave rectification

This is a graph that is seen on CRO. How is it change after full wave rectification process?

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Choose the diagrams that show smoothing process has occured

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