ELECTRONIC DEVICES AND CIRCUITS QUIZ

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

The number of free electrons increases

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

99

1.01

0.99

100

A is false but R is true

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

A is true but R is false

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

Either A or B

Intrinsic semiconductor

Highly doped semiconductor

Lightly doped semiconductor

Diffusion of holes

Drift of holes

Drift of electrons

Diffusion of electrons

Has lower energy than the electron in the valence band

Has higher energy than the electron in the valence band

Loses its charge easily

Jumps to the top of the crystal

Holes and electrons

Ions

Holes

Electrons

Only a saturation region

Only an ohmic region

An ohmic region at low voltage value followed by a saturation region at higher voltages

An ohmic region at large voltage values preceded by a saturation region at lower voltages

Signal frequency control is required

Modulation of signal is required

Rectification of the signal is required

Signal amplification is required

500 mg

150 mg

100 mg

200 mg