Submit a question to our community and get an answer from real people.
Submit

Why do opposite charges attract?

why do like charges repel?

Report as

opposite charges attract, because the force that the 2 charges exert on each other is negative. Imagine you have 2 charges, Q1(+) and Q2(-). Q1 is positively charged and Q2 is negatively charged, and they are located w/in a distance of R. According to the coulomb's law, the positive charged atom will produce a positive electrical field, E1=(kQ1/(R^2), and the negative charged atom will produce a negative electrical field, which is -E2=(-kQ2/(R^2). The force that Q1(+) exerted on Q2 is Q1*(-E2), which means Q1 is inducing a negative F on Q2, and causing Q2 to move towards Q1. Vice versa, the force that Q2(-) exerted on Q1 is -Q2*(E1), which causes Q1 to move towards Q2.
like charges repel, b/c the force exerted on each of atom is positive, which forces the atom to go outwards.

Helpful Fun Thanks for voting Comments (0)
Report as
Add a comment...

Opposite charges attract because of the negative and positive energy charges. An electrical force causes like charges to repel and opposite charges to attract. Visit http://www.physicsclassroom.com/class/estatics/u8l1c.cfm for more details on what exactly causes the attraction.

Helpful Fun Thanks for voting Comments (0)
Report as
Add a comment...

It's like a magnet: if there is a negative one and a positive one, they attract (hence the term "opposites attract.") If two positive and two negative charges get close, they repel..

Helpful Fun Thanks for voting Comments (0)
Report as
Add a comment...

Because it works like relationships. You absolutely hate your twin (which is the same as you) but you love that girl down the street (the opposite of you).

Helpful Fun Thanks for voting Comments (0)
Report as
Add a comment...
Do you have an answer?
Answer this question...
Did you mean?
Login or Join the Community to answer
Popular Searches