A Zener diode is a specialized diode designed to operate in reverse breakdown mode, meaning it allows current to flow in the reverse direction when the voltage across it exceeds a specific breakdown voltage, known as the Zener voltage, thereby providing a stable, constant voltage reference in circuits.
Which of the these is the best description of a zener diode?
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Question context
This question is part of ⚡ Electrical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.