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Component 1 Principles of Electronics

Quick questions on Active op-amp filters and frequency response - 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 active low-pass filter has Rf=100 kΩR_f = 100\ \text{k}\Omega and a feedback capacitor of 1.0 nF1.0\ \text{nF}. Find the cut-off frequency. [2 marks]
What is q2?
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State how a band-pass filter is constructed from active stages. [2 marks]
What is q3?
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State one advantage of an active filter over a passive RC filter. [1 mark]

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