Question
Which symbol in figure G7-1 represents a Zener diode?
Answer Options
- A) Symbol 4
- B) Symbol 1
- C) Symbol 11
- D) Symbol 5
Correct Answer: D
Explanation
A Zener diode is a specialized diode designed to operate in the reverse-breakdown region, where it maintains a near-constant voltage across its terminals despite variations in current. This property makes it essential for voltage regulation circuits.
Symbol 5 represents the Zener diode. It is similar to a standard diode symbol but has small, perpendicular ‘wings’ on the cathode line to denote its specialized breakdown characteristic. The ability to identify this symbol is key to understanding power regulation in DC circuits.
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