Electric circuits, volts amps watts and ohms: Difference between revisions

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==Electrical Circuits - doing the rounds==
==Electrical Circuits - doing the rounds==
[[File:Charges.png|200px|thumb|right|Opposite charges attract, like charges repel]]
[[File:Charges.png|180px|thumb|left|Opposite charges attract, like charges repel.]]
[[File:Basic_circuit.png|200px|thumb|right|A simple electrical circuit.]]
Positive and negative charge. Opposite charges attract, like charges repel (pic), hence an open circuit results in a pile-up. A simple circuit - battery, switch, bulb (pic)
Positive and negative charge. Opposite charges attract, like charges repel (pic), hence an open circuit results in a pile-up. A simple circuit - battery, switch, bulb (pic)



Revision as of 22:57, 22 November 2014

Basic electrical theory every Restarter should know.

(This page is work in progress - comments and update suggestions to the Discussion page only for now please.)

Summary

A knowledge of basic electrical theory is essential for anything more than purely mechanical repairs, and will greatly help in diagnosing faults and working safely.

Electrical Circuits - doing the rounds

Opposite charges attract, like charges repel.
A simple electrical circuit.

Positive and negative charge. Opposite charges attract, like charges repel (pic), hence an open circuit results in a pile-up. A simple circuit - battery, switch, bulb (pic)

Volts - the pressure is on

Low pressure - pic: thumb over inverted bottle of water?

High pressure - pic: firehose or burst main, or Geneva Jet d'Eau.

Amps - go with the flow

Small flow - pic: dripping tap?

Large flow - pic: Amazon?

Watts - feel the power

Volts x Amps - large voltage or large current.

Illustrations?

Ohms - resistance isn't futile

Volts per amp

Illustration?

Safety

Consider whether your page should include a specific section on safety, if for example it deals with mains-powered equipment or high voltages, or if special care is required in handling hot or sharp tools, or hazardous substances.

References

Template:Reflist

External links

  • External links as bullet points