Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
+1 vote
3.2k views
in Electrostatics by (313 points)
closed by

In the given figure calculate the force on the charge Q, if ‘O’ is the middle point of the line AB.

1 Answer

+2 votes
by (541 points)
selected by
 
Best answer

HELLO,

Free body diagram of charge +Q is as shown below.

Charge at A attracts  charge +Q with force \(F_A\) and charge at B repels the charge +Q with force \(F_B\).

\(F_A= \frac{kqQ}{(r/2)^2}\) and \(F_B= \frac{kqQ}{(r/2)^2}\)

As both the force is in same direction and equal in magnitude so resultant of these force is double of one of force.

\(F_{res}= \frac{2kqQ}{(r/2)^2}\) in the direction of charge -q.

\(F_{res}= \frac{8kqQ}{r^2}\)

I hope you will understand.smiley

by (313 points)
Thank you so much! I really appreciate your response. Please help me in this question too,
https://www.sarthaks.com/1059045/three-identical-point-charges-magnitude-placed-vertices-equilateral-triangle-having-side
by (541 points)
Thanks, I am not able to open the link.
by (313 points)
Just copy the link and paste it in your browser. And you will get there
by (541 points)
I am doing that but response is page not found.
by (541 points)
I had answered the question and see the solution step by step.

No related questions found

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...