| Directions (Q. Nos. 71-73): Refer to the given figure and answer the following questions. |
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| Five equal charges each of value g are placed at the corners of a regular pentagon of side a. The electric field at the centre of the pentagon is: |
A) \[\frac{q}{4\pi {{\varepsilon }_{0}}{{r}^{2}}}\]
B) \[\frac{{{q}^{2}}}{4\pi {{\varepsilon }_{0}}{{r}^{2}}}\]
C) \[\frac{2q}{4\pi {{\varepsilon }_{0}}{{r}^{2}}}\]
D) zero
Correct Answer: D
Solution :
(d) zero The electric field at the centre of pentagon would be zero.
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