Class 12 Exam > Class 12 Videos > Semiconductors,LED and Solar cell - Semiconductor Electronics
Semiconductors,LED and Solar cell - Semiconductor Electronics Video Lecture - Class 12
FAQs on Semiconductors,LED and Solar cell - Semiconductor Electronics Video Lecture - Class 12
| 1. What is a semiconductor? |  |
A semiconductor is a material that has electrical conductivity between a conductor and an insulator. Its conductivity can be controlled by adding impurities or applying an electric field, making it a crucial component in electronic devices.
| 2. How do semiconductors work in electronic devices? | |
Semiconductors work by manipulating the flow of electric current. In a semiconductor device, such as a transistor, the flow of current can be controlled by applying a small voltage. This allows for amplification or switching of electrical signals, enabling the functioning of various electronic devices.
| 3. What is the role of a LED in semiconductor electronics? | |
A Light Emitting Diode (LED) is a semiconductor device that emits light when an electric current is passed through it. LEDs play a vital role in semiconductor electronics as they are widely used in various applications, including lighting, displays, and indicators.
| 4. How do solar cells utilize semiconductors? | |
Solar cells, also known as photovoltaic cells, utilize semiconductors to convert sunlight into electrical energy. The semiconductor material in a solar cell absorbs photons from sunlight, exciting electrons and creating an electric current. This current can then be used to power electrical devices or stored in batteries for later use.
| 5. What are the advantages of using semiconductors in electronic devices? | |
There are several advantages of using semiconductors in electronic devices. Some of these advantages include their compact size, low power consumption, high reliability, and fast switching speed. Semiconductors also allow for the miniaturization of electronic components, leading to the development of smaller and more efficient devices.
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Nov 23, 2024 Last updated |
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