Advanced Qualification · A-002 Advanced components and circuits · A-002-002-004
What limits the maximum forward current in a junction diode?
- A Peak inverse voltage
- B Junction temperature
- C Forward voltage
- D Back EMF
Correct answer: B — Junction temperature. From the official ISED question bank, verified word for word.
Why
A junction diode stops working if it gets too hot because the heat builds up inside the tiny junction where the materials meet. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.