Question

1. Five charges, q each are placed at the comers of a regular pentagon of side a(Fig.
(a) (1) What will be the electric field at 0, the centre of the pentagon?
(ii) What will be the electric field at O if the charge from one of the corners (say A) is removed? (mm)
What will be the electric field at O if the charge q at A is replaced by -
(b) How would your answer to (a be affected if pentagon is replaced by m-sided regular polygon with
charge q at each of its corners?​

Answer 1

Answer:

electric field will be zero at centre ..

Explanation:

either centre is surrounded by 3, 4 or 5 charges ..

just use concept of guess's law.