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Four charges are arranged at the corners...

Four charges are arranged at the corners of a square `ABCD`, as shown in the adjoining figure, The force on a positive charge kept at the centre `O` is

A

Zero

B

Along the diagonal `AC`

C

Along the diagonal `BD`

D

Perpendicular to side `AD`

Text Solution

Verified by Experts

The correct Answer is:
C
We put a unit positive charge at `O`. Resultant force due to the charge placed at `A` and `C` is zero and resultant force due to `B` and `D` is towards `D` along the diagonal `BD`
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Knowledge Check

  • Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the positive charge kept at the centre O is

    A
    zero
    B
    along the diagonal AC
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    along the diagonal BD
    D
    perpendicular to side AB

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    A
    along the diagonal BD
    B
    along the diagonal AC
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    zero
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