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Component 1 Principles of Electronics

Quick questions on Operational amplifier circuits and gain - Eduqas A-Level Electronics

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 Rin=4.7 kΩR_\text{in} = 4.7\ \text{k}\Omega and Rf=47 kΩR_f = 47\ \text{k}\Omega. Find the gain. [2 marks]
What is q2?
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State the gain of a voltage follower. [1 mark]
What is q3?
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State one ideal property of an op-amp that means no current flows into its inputs. [1 mark]

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