The varactor diode cannot be used for
Answers
Answer:
Explanation:
Varactor or varicap diodes are used mainly in radio frequency or RF circuits to provide voltage controlled variable capacitance. These electronic componenta can be used in a whole variety of ways where a capacitance level needs to be controlled by a voltage.
When reverse-biased, they have a capacitance that varies with an applied voltage. They are most often used in devices that require electronic tuning, such as radios.
A varactor diode is designed to store electric charge not to conduct electric current. So varactor diode should always be operated in reverse bias. When a reverse bias voltage is applied, the electrons from n-region and holes from p-region moves away from the junction.
Answer:
in modern times it is used very less.
Explanation:
Varactor diodes, also called varicaps, are semiconductor devices that behave like variable capacitors. When reverse-biased, they have a capacitance that varies with an applied voltage. They are most often used in devices that require electronic tuning, such as radios.But in modern times it is used very less.
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