Exam-style question
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Explain how a MOSFET can be used to control the brightness of a lamp in a simple circuit.
Model answer
What a good answer should say
- A MOSFET can be used as a switch to control the current flowing to a lamp.
- By adjusting the gate voltage, the MOSFET can turn on or off, allowing varying amounts of current to pass through, which in turn adjusts the brightness of the lamp.
Explanation
Why this works
This answer demonstrates understanding of MOSFET operation in control circuits, specifically how the gate voltage influences current flow. It tests the application of knowledge regarding MOSFETs in practical scenarios.
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