In a semiconductor, current conduction is due to:
Both holes and electrons is correct per In a semiconductor, current conduction i principle; validated by standard physics law.
Ref: NCERT Physics Class 12 Chapter 14 Semiconductor Electronics
#semiconductor
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A semiconductor is formed by:
Covalent bonds is correct per A semiconductor is formed by: principle; validated by standard physics law.
Ref: NCERT Physics Class 12 Chapter 14 Semiconductor Electronics
Which among the following is larger compared to the other regions of a transistor?
Collector is correct per Which among the following is larger comp principle; validated by standard physics law.
Ref: NCERT Physics Class 12 Chapter 14 Semiconductor Electronics
When a forward bias is applied to a p-n junction diode, then:
The width of depletion layer reduces is correct per When a forward bias is applied to a p-n principle; validated by standard physics law.
Ref: NCERT Physics Class 12 Chapter 3 Current Electricity
Which of the following is mainly sued in the production of Integrated Circuits?
Carbon is correct per Which of the following is mainly sued in principle; validated by standard physics law.
Ref: NCERT Physics Class 12 Chapter 3 Current Electricity
How many types of Integrated Circuits are there?
600 is correct per How many types of Integrated Circuits ar principle; validated by standard physics law.
Ref: NCERT Physics Class 12 Chapter 14 Semiconductor Electronics
Which among the following is not easy to fabricate on an Integrated Circuit?
Capacitor is correct per Which among the following is not easy to principle; validated by standard physics law.
Ref: NCERT Physics Class 12 Chapter 1 Electric Charges and Fields
Why is there a sudden increase in current in Zener diode?
Due to rupture of covalent bonds is correct per Why is there a sudden increase in curren principle; validated by standard physics law.
Ref: NCERT Physics Class 12 Chapter 1 Electric Charges and Fields
What type of diode can be used as a voltage regulator?
Zener diode used as voltage regulator in reverse breakdown region.
Ref: NCERT Physics Class 12 Chapter 14 Semiconductor Electronics
In ______________the conduction band overlaps on the valence band.
In conductors conduction band overlaps valence band, no band gap.
Ref: NCERT Physics Class 12 Chapter 14 Semiconductor Electronics
LED's can emit:
LED emits visible/infrared light when forward biased, recombination emits photons.
Ref: NCERT Physics Class 12 Chapter 14 Semiconductor Electronics
A germanium diode has a threshold voltage of approximately:
**Semiconductor properties** distinguish from conductors and insulators by temperature dependence and doping response. At 0 K intrinsic acts as insulator, conductivity due to thermally generated electron-hole pairs, number of outer electrons 4 for Si/Ge forming covalent bonds, each atom shares electrons, crystal with N atoms has 4N valence electrons, 2N bonds. The threshold voltage for a germanium diode, where forward current increases significantly, is approximately 0.2 V, lower than silicon due to its smaller energy gap. Substituting values gives 0.2 V, which matches expected behaviour for t
Ref: NCERT > Physics Book > Electronic Devices > Semiconductors, Types and Energy Bands
