Physics KV Class 12

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

Tags

NGSS.HS-PS2-6

These are the characteristics of Trivalent impurities except

• •3 valence electrons

• •produce p-type semiconductors

• •producing a "hole".

• Antimony, arsenic, and phosphorus are the examples

The characteristics of p-type semiconductors is includes

• Majority carriers are electron

• Has tendency to gain electron

• Has tendency to donor electron

• Easy to conduct electricity

Tags

NGSS.HS-PS1-3

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

• Doping

• Ionization

• Recombination

• Atomic modification

What is the most common semiconductor material used for producing integrated circuits

• Quartz

• Silicon

• Diamond

• Tantalum

Tags

NGSS.HS-PS2-6

How is conduction increased in an p-type semiconductor?

• by increased applied electrical field

• by decreased applied electrical field

• by the availability of extra holes

• by the availability of donor electrons

A material that conducts electricity well tends to have ____.

• no valence electrons

• partially filled bands

• completely filled bands

• conduction and valence bands that are far apart

1. The resistivity of a semiconductor lies between 

• (a)10 ^-6 Ωm to10^-8 Ωm
• n(b) 10⁸ Ωm to10¹⁴ Ωm
• (c) 10 ^-2 Ωm to10⁴ Ωm
• (d) none of these

2. The forbiddenn energy gap for Germanium is of the order of

• (a) 0.7 eV
• (b) 0.3 eV
• (c) 1.1 eV
• (d) 10 eV