ELECTRONIC DEVICES AND CIRCUITS QUIZ

Direct band gap semiconductor

Narrowband gap semiconductor

Wideband gap semiconductor

An indirect band gap semiconductor

Diffusion process

None

Oxidation

Evaporation

Air

Mineral oil

Paraffin wax

Mica

A is true but R is false

A is false but R is true

Both A and R are true and R is correct explanation of A

Both A and R are true but R is not a correct explanation of A

10 A

1 A

20 A

100 A

The number of free electrons increases

The number of free electrons and holes increase by the same amount

The number of free electrons and holes increase but not by the same amount

The number of free electrons increases but the number of holes decreases

White portion of spectrum

Violet portion of spectrum

Green portion of spectrum

Red portion of spectrum

150 mg

200 mg

100 mg

500 mg

0.78 eV

5 eV

2 eV

10 eV

should not exceed half the breakdown voltage

should not exceed one third the breakdown voltage

may be equal to or less than breakdown voltage

should not exceed the breakdown voltage