1) What are the materials required for this experiment?
A P-N junction diode, 50-volt battery, one 3-volt battery, one 0-3 volt voltmeter, one a high resistance rheostat, one 0-100 μA ammeter, one 0-50 volt voltmeter, one 0-100 mA ammeter, connecting wires, one-way key, and sandpaper are the materials required for this experiment.
2) Give three main precautions that should be taken while doing this experiment.
The connections must be clean, right, and neat. A key must be used while the circuit is active. After the breakdown, voltage (forward bias) must not be provided.
3) What are the three types of materials based on electrical conductivity?
Conductors, insulators, and semiconductors are the three types of materials based on electrical conductivity.
4) What is electrical conductivity?
Electrical conductivity is a measure of how smoothly a body allows current to move through it.
5) What is the relationship between resistivity and electrical conductivity?
The electrical conductivity of the material is reciprocal to resistivity.
6) What is a hole in the context of a semiconductor?
A hole is a place in the crystal lattice of a material which is vacated by an electron. It is considered a positive charge.
7) What is an intrinsic semiconductor?
An intrinsic semiconductor is a pure semiconductor that does not possess any significant dopant species. It is also called an i-type semiconductor or undoped semiconductor.
8) What is an extrinsic semiconductor?
An extrinsic semiconductor is an impure semiconductor that possesses significant dopant species.
9) What is an n-type semiconductor?
An n-type semiconductor is a type of intrinsic semiconductor doped using arsenic (As), antimony (Sb) or phosphorus (P) as an impurity.
10) What is meant by doping?
Doping is the process of deliberately adding appropriate impurities to pure semiconductors.
11) What is meant by a junction?
A junction is a common surface of p-type and n-type semiconductors.
12) What is meant by a junction potential barrier?
A junction potential barrier is a potential difference between junction terminals of semiconductors.
13) What are the two types of biasing?
Forward biasing and reverse biasing are the two types of biasing.
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