Advanced Qualification · A-002 Advanced components and circuits · A-002-003-004
What is the alpha of a bipolar transistor in common base configuration?
- AForward current gain
- BForward voltage gain
- CReverse current gain
- DReverse voltage gain
Correct answer: A — Forward current gain. From the official ISED question bank, verified word for word.
Why
Alpha measures how much the output current in a common base setup follows the input current, making it a forward current gain because the signal moves from emitter to collector. 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