ELECTRONIC DEVICES AND CIRCUITS QUIZ

Diffusion process

Evaporation

None

Oxidation

Red portion of spectrum

Green portion of spectrum

White portion of spectrum

Violet portion of spectrum

Jumps to the top of the crystal

Loses its charge easily

Has higher energy than the electron in the valence band

Has lower energy than the electron in the valence band

Potential barrier

Forward bias voltage

Rate of thermal generation of electron hole pairs

None of these

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

A is false but R is true

Diffusion of electrons

Diffusion of holes

Drift of holes

Drift of electrons

Only for the positive half cycle of the input signal

For less than fourth cycle

Only for the negative half cycle of the input signal

For full cycle

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

The number of free electrons increases

Signal amplification is required

Modulation of signal is required

Rectification of the signal is required

Signal frequency control is required

Free electrons in N-region only

Holes in P-region only

Majority as well as minority carriers in both regions

Majority carriers in both regions