Question
Explain applications of semiconductors.
✓
Answer
i. Solar cell:
v. LED (Light Emitting Diode):
vii. Integrated Circuits (ICs): A small device having hundreds of diodes and transistors performs the work of a large number of electronic circuits.
- It converts light energy into electric energy.
- t is useful to produce electricity in remote areas and also for providing electricity for satellites, space probes and space stations.
- These are devices with two junctions and three terminals.
- A transistor can be a p-n-p or n-p-n transistor.
- Conduction takes place with holes and electrons.
- Many other types of transistors are designed and fabricated to suit specific requirements.
- They are used in almost all semiconductor devices.
v. LED (Light Emitting Diode):
- It emits light when current passes through it.
- House hold LED lamps use similar technology.
- They consume less power, are smaller in size and have a longer life and are cost effective.
vii. Integrated Circuits (ICs): A small device having hundreds of diodes and transistors performs the work of a large number of electronic circuits.
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