Question

Three equal and similar charges q are placed on corners of a square of side a. What is the electric field at the centre of the square ?​

Answer 1

Answer:(iii) Three equal and similar charges q are placed on corners of a square of side 'a'. What is the electric field at the centre of the square? ... Thus, the resultant electric field at D is, E = EAC + EB = √2 kq/a2 + kq/(2a2) = (2√2 + 1)kq/(2a2) along BD

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