## Answers

2015-03-19T04:45:41+05:30
Two equal and opposite charges when placed in electric field attract each other with a force which is-1.)directly proportional to the product of the 2 charges
2.)inversely proportional to the square of distance between them.
3.)depends on the nature of medium
Formula--------------
two charges Qa and Qb separated by a distance r will attract each other with a force,
F  α
F  =
where K is coulumbs constant having value 8.9× N m²/C²
also K=1/4π∉
so F can also be written as
F=﻿﻿1QaQb/4π∉r²
2015-03-19T07:09:51+05:30

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In physics , Coulombs law is stated as the force acting between two electric charges is radial, inverse-square, and proportional to the product of the charges.!!