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ScotlandEngineering ScienceQuick questions

Area 2: Electronics and control

Quick questions on Operational amplifiers - 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?
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An inverting amplifier has Rf=80R_f = 80 kilohms and R1=20R_1 = 20 kilohms. State the gain. [1 mark]
What is q2?
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State the condition for a comparator's output to go high (output near the positive supply). [1 mark]
What is q3?
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An inverting amplifier with gain 10-10 has an input of +0.2+0.2 V. Find the output. [2 marks]

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