ELECTRONIC DEVICES AND CIRCUITS QUIZ

Germanium diodes

Either of the above

Silicon diodes

None of these

The number of free electrons increases

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

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

Potential barrier

Rate of thermal generation of electron hole pairs

None of these

Forward bias voltage

0.78 eV

10 eV

2 eV

5 eV

Has higher input resistance

All of these

Is less noisy

Has better thermal stability

High dielectric constant

Ferroelectric characteristic only above the curie point

No hysteresis

Electric dipole moment

Pure annealed copper

Induction hardened copper

Copper containing traces of silicon

Hard drawn copper

Holes

Holes and electrons

Ions

Electrons

Those produced by doping as well as thermal energy

Only those produced by thermal energy

Any of the above

Only those produced by doping

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

Only a saturation region