Question
Download Solution PDFA pn junction acts as a _______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFUnilateral device:
- A unilateral device is a device that conducts only in one direction.
- p-n junction diodes conduct only when the p region is connected to higher voltage and n region is connected to lower voltage.
- When reverse biased, it acts as an open circuit.
- The symbol for a diode is as shown:
- A pn junction, therefore, acts as a unidirectional switch.
Note: Bi-Lateral Devices devices allow current to flow through them in both directions. E.g. Resistor
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