Electrostatics 1 Question 8
8. Six charges, three positive and three negative of equal magnitude are to be placed at the vertices of a regular hexagon such that the electric field at is double the electric field when only one positive charge of same
magnitude is placed at
(2004, 1M)
(a),,,,,+-+–+
(b),,,,,+-+-+-
(c),,,,,++-+–
(d),,,,,-++-+-
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Answer:
Correct Answer: 8. (d)
Solution:
- According to option (d) the electric field due to
and and due to and add to zero. While due to and will be added up. Hence, the correct option is (d).
(P) Component of forces along
(Q) Component of forces along
(R) Component of forces along
(S) Component of forces along