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416345 2020 electrical and electronic symbols list

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Version 0.3

For examination from 2020.

Electrical and electronic

symbols list

Cambridge IGCSE® and

Cambridge IGCSE® (9–1)

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Cambridge IGCSE and Cambridge IGCSE (9–1) Design & Technology 0445, 0979 Electronic and electrical symbols list.

Cambridge Assessment International Education 1 Hills Road, Cambridge, CB1 2EU, United Kingdom Tel: +44 (0)1223 553554 Fax: +44 (0)1223 553558

Email: [email protected] www.cambridgeinternational.org

Copyright © UCLES September 2017

+

A

M

-+

V

Primary or

secondary cell Terminal ac supply Ammeter Voltmeter Motor

Junction of conductors

Double junction

Crossing of conductors with

no electrical

connection Frame Earth Fuse

Coil

Single pole double throw switch

Together make an SPDT relay Switch Break contact

Make contact

spring return Capacitor

Polarised capacitor

Resistor Thermistor

Light dependent resistor (LDR) Variable

resistor Potentiometer

Semiconductor diode

Light emitting

diode (LED) Photodiode

AND NAND OR NOR NOT (inverter) Schmitt inverter

NPN transistor PNP transistor

Operational amplifier

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