electromagnetic field

Discussion in 'General Electronics Chat' started by gabriel1234, Dec 14, 2011.

1. gabriel1234 Thread Starter New Member

Dec 6, 2011
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does anyone know if i were to combine two opposite electromagnetic fields together, also if i were to put together two electromagnetic fields. what would happpen and are there any resources i could read?
much appreciated if someone would help

2. Wendy Moderator

Mar 24, 2008
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The Completed Projects Forum is for Completed Projects only. It is meant to allow members to show plans for projects they built so other members can duplicate them if desired. Your thread does not belong in this forum, so was moved to a more appropriate forum.

3. crutschow Expert

Mar 14, 2008
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3,376
Electromagnetic fields are radio waves. How do you propose to "combine" them. Radio waves do not combine, they simply exist in the same space at the same time.

4. thatoneguy AAC Fanatic!

Feb 19, 2009
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That's pretty much how universal electric motors operate.

5. russ_hensel Distinguished Member

Jan 11, 2009
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Electromagnetic fields are vector fields, they add like vectors. They can cancel each other out. Any basic E and M book will cover all of this, or most introductory physics texts. This is true if they are static or dymanic ( like radio waves ). The two different fields are related to each other by equations know as Maxwell's equations.

6. bountyhunter Well-Known Member

Sep 7, 2009
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According to Star Trek, it would be the end of the universe.....

I think you would just get cancellation if the E fields are opposite polarity and equal magnitude.

7. crutschow Expert

Mar 14, 2008
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Motors use magnetic fields.

8. thatoneguy AAC Fanatic!

Feb 19, 2009
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Which are still electromagnetic at low frequency.

9. crutschow Expert

Mar 14, 2008
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True in a strictly technical sense. But it's the magnetic part of the field that does the work. The electric part of the field has no effect on the motor operation.