MadSci Network: Physics
Query:

Re: How do watts, volts, ohms, and amperes compare to one another?

Date: Sun Apr 2 12:20:09 2000
Posted By: William Beaty, Electrical Engineer / Physics explainer / K-6 science textbook content provider
Area of science: Physics
ID: 952560795.Ph
Message:

Hi!
Oooo, good question. Some info is at ELECTRICITY FAQ, also Electricity is not energy and Electricity Misconceptions. But none of these have a direct answer to your question. A useful answer is going to be HUGE. Be warned! (grin)

Here's the extremely short answer. Voltage pushes electric charges through wires, and also through an electrical resistance, which heats up the resistive object. The flow of the charges is measured in amperes, the flow of electrical energy into the resistive object and the heat output is measured in watts, and the resistance is measured in ohms. Amperes and Watts are two different kinds of flow, yet both happen in circuits.

Bigger answer here: http://www.amasci.com/elect/vwatt1.html


Current Queue | Current Queue for Physics | Physics archives

Try the links in the MadSci Library for more information on Physics.



MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci


MadSci Network, webadmin@www.madsci.org
© 1995-2000. All rights reserved.