Advanced Qualification · A-002 Advanced components and circuits · A-002-002-011
The power-handling capability of most Zener diodes is rated at 25 degrees C or approximately room temperature. If the temperature is increased, the power handling capability is:
- Aslightly greater
- Bless
- Cthe same
- Dmuch greater
Correct answer: B — less. From the official ISED question bank, verified word for word.
Why
Zener diodes generate heat when they regulate voltage, and as the surrounding temperature rises, the component struggles to get rid of that extra heat. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits is section A-002 of the Advanced exam: Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.
Drill A-002 — free, no account