Electronic Systems

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This Advanced Physics Project for Independent Learning (APPIL) unit is one of the two second-level units for the theme called ‘Materials’. Topic 1 considers the important measuring devices associated with electrical and electronic circuits. Topic 2 deals with capacitors. Topic 3 deals with some of the uses of semiconducting materials. Topic 4 looks at a most important area of digital electronics - logic gates. Topic 5 ends the unit with a study of analogue electronics.

Contents

Topic 1: Electrical instruments
1.1 Ammeters and voltmeters
1.2 The cathode ray oscilloscope
1.3 The potential divider
1.4 The Wheatstone bridge
Experiments
Questions on objectives

Topic 2: Capacitors
2.1 Introduction
2.2 Capacitance
2.3 The parallel-plate capacitor
2.4 Capacitor networks
2.5 Energy stored in a capacitor
2.6 Charging and discharging a capacitor
Experiments
Questions on objectives

Topic 3: Semiconductor devices
3.1 The junction diode
3.2 The junction transistor
3.3 The tranistor as a switch
3.4 The transistor as an amplifier
Experiments
Questions on objectives

Topic 4: Digital electronics
4.1 Integrated circuits
4.2 Digital electronics
4.3 Logic gates
4.4 Using logic gates
4.5 Combining gates
Experiments
Questions on objectives

Topic 5: Analogue electronics
5.1 The operational amplifier
5.2 Op-amps as switches
5.3 Op-amps as amplifiers
5.4 Positive feedback
Experiments
Questions on objectives

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