LIVE Course for free

Rated by 1 million+ students
Get app now
+1 vote
in Physics by (1.3k points)
edited by

Six charges are placed at the certices of a regular hexagon as shown in the figure . The electric field on the line passing through point O and perpendicular to the plane of the figure at a distance x from point O is (x>>a)

1 Answer

0 votes
by (9.9k points)
Best answer

Answer : (a) Qa/π∈0x3

Explanation :

Consider the charges at opposite sides of O . They form a dipole with dipole moment p=2Qa

Electrical field due to a dipole on its axis is E=kp/x= Qa/2π∈0x3

Now three fields exists as shown in figure :


Net electric field :


=2Qa/2π∈0x3 = Qa/π∈0x3

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.