Question

HESSAGE HY I FULL SCREEN PRINTER VERSION. イBACK Chapter 21, Problem 014 what must be the ratio a,/02 when particle 3 is at (a) x +0.517a and (b) x +2.49a7 (a) Number (b) Number Click if you would like to Show Work for this question: Ocen Show wrk z is at x- +a. If their net electrostatic force on partide 3 of charge Q is to be zero, Units Units

Answer 1

Part-a

at x = +0.517a

Using Coulomb's force between the charges and equating them we get

here d is the distance from q1 to q3

by plugging   and solving we get

which gives us

which gives us

There is no unit with the ratio.

Part-b

at x=+2.49a

Again equating the coulombs forces we get

or

which gives us

or

Ratios are unit less