Quiz on Semiconductor and Devices

What is the bandgap of Silicon
0.7 eV
1.1eV
1.3 eV
None of these
Choose the most appropriate choice. An Ideal Opamp has______________________
Very low input impedance
Very high output inpedance
May have a limited bandwidth of 1 KHz
None of these
Which of the following is not a direct band gap semiconductor material
ZnO
P3HT
TiO2
GaAs
Which is the following is not an optoelectronic device
Phototransistor
Avalanche Photodiode
Zener Diode
Diode LASER
Why is Silicon considered to be a preferred material for semiconductor device?
Because of its relative abundance in earth's crust
Because first devices were made using Silicon
Because Silicon can be doped
Because Silicon can be oxidized
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