M4.1.1 Diodes Cat B1

Anode is _________ Polarity in diodes

• Negative

• Positive

• Ground

• Hot Side

What type of diode is this?

• silicon

• LED

• Zener

• Mylar

Diodes are categorised as?

• Passive components

• Active components

• conductor

• insulator

Main phenomenons associated with formation of p-n junctions are

• Drift only

• Diffusion only

• Diffusion and Drift

• only doping

The region on either side of the junction which becomes free from the mobile charge carriers is called

• Energy gap region

• Charge free region

• Diffusion region

• Depletion region

In the forward bias arrangement of a p-n junction diode,

• the n-end is connected to the positive terminal of the battery

• the p-end is connected to the positive terminal of the battery

• the direction of current is from n-end to p-end in the diode

• the p-end is connected to the negative terminal of the battery

During formation of p-n junction

• an electron diffuses from n to p side

• a hole diffuses from p to n side

• a hole diffuses from n to p side

• an electron diffuses from p to n side

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.

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

• Doping

• Ionization

• Recombination

• Atomic modification

the figure A shows

• forward bias

• reverse bias