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ZIMSEC A-Level Physics

5.1Analogue Electronics

Analogue Electronics in ZIMSEC A-Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
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Overview

Form 6.

Learning objectives

What the syllabus expects you to be able to do.

  1. 5.1.1Understand and apply: the operational amplifier: properties and comparator.
  2. 5.1.2Understand and apply: negative feedback, inverting and non-inverting amplifiers.
  3. 5.1.3Understand and apply: sensors and output devices.

Lessons

  • Negative feedback: inverting and non-inverting amplifiers

    50 min

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  • Sensors, signal processing and output devices

    50 min

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  • The operational amplifier and the comparator

    45 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Analogue Electronics: sample question

1 mark

A non-inverting amplifier has Rf=33 kΩR_f = 33\ \text{k}\Omega (output to inverting input) and R1=2.2 kΩR_1 = 2.2\ \text{k}\Omega (inverting input to 0 V). What is its voltage gain?

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