Question

Q. - Three point charges ( q ) are placed at three vertices of equilateral triangle of side a . Find the magnitude of Electrostatic force on any charge due to other two.

Solution should be in pic ! .


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Answer 1

Heya.........!!!!

Look at the attachment for solution
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As the triangle is equilateral and magnitude of charge are same ( q ) ...then the force will be same on all three charges .

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Answer 2

HEya mate ,
We can solve this using two methods 
!>Using parallelogram law
2>By resolving the components of force

We can use both here since the charges are same and the distance is also same so the components in y-direction will be cancelled out.
And in X- direction will be added.


BUT IN THE SOLUTION I HAVE USED THE PARALLELOGRAM LAW:
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