| ASSERTION: Three equal charges are situated on a circle of radius r such that they form an equilateral triangle, then the electric intensity at the center is zero. |
| REASON: The force on unit positive charge at the center, due to the three equal charges is represented by the three sides of a triangle taken in the same order. Therefore, electric field intensity at centre is zero. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: A
Solution :
Resultant of electric intensity at O due to B and C is equal and opposite to that due to A.
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