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ScotlandEngineering ScienceQuick questions
Area 2: Electronics and control
Quick questions on Transistor switching circuits - SQA Higher Engineering Science
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State what controls whether a transistor switch is on or off. [1 mark]
What is q2?Show answer
State why a diode is fitted across a motor switched by a transistor. [1 mark]
What is q3?Show answer
Give one reason a relay is used instead of switching a load directly with the transistor. [1 mark]
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