# electromagnetic field

#### gabriel1234

Joined Dec 6, 2011
3
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

#### Wendy

Joined Mar 24, 2008
23,320
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.

#### crutschow

Joined Mar 14, 2008
33,365
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
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.

#### thatoneguy

Joined Feb 19, 2009
6,359
That's pretty much how universal electric motors operate.

#### russ_hensel

Joined Jan 11, 2009
825
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.

#### bountyhunter

Joined Sep 7, 2009
2,512
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
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.

#### crutschow

Joined Mar 14, 2008
33,365
That's pretty much how universal electric motors operate.
Motors use magnetic fields.

#### thatoneguy

Joined Feb 19, 2009
6,359
Motors use magnetic fields.
Which are still electromagnetic at low frequency.

#### crutschow

Joined Mar 14, 2008
33,365
Which are still electromagnetic at low frequency.
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.