Advanced Qualification · A-002 Advanced components and circuits · A-002-004-001
What is an enhancement-mode FET?
- AAn FET without a channel; no current occurs with zero gate voltage
- BAn FET with a channel that blocks voltage through the gate
- CAn FET with a channel that allows current when the gate voltage is zero
- DAn FET without a channel to hinder current through the gate
Correct answer: A — An FET without a channel; no current occurs with zero gate voltage. From the official ISED question bank, verified word for word.
Why
An enhancement-mode FET starts with no natural path for electricity to flow between its terminals, meaning zero current passes when the gate voltage is zero. 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.
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