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Question
Four like charges each of +q are placed at the corners of a square of side a. The electric field intensity at the centre of square will be:
Four like charges each of +q are placed at the corners of a square of side a. The electric field intensity at the centre of square will be:
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Solution
The correct option is C 0
Consider unit positive charge at the centre of square. The electric field intensities at opposite sides of square are equal in magnitude and in opposite direction.
Total electric field intensity at the centre of square = 0.
0
Consider unit positive charge at the centre of square. The electric field intensities at opposite sides of square are equal in magnitude and in opposite direction.
Total electric field intensity at the centre of square = 0.
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