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]] | |||
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 21:40, 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
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
External links
- External links as bullet points