Four positive charges (2√2−1)Q are arranged at the four corners of a square. Another charge q is placed at the centre of the square. For what value of q , is the resulting force acting on each corner charge be zero ?

Four positive charges (2√2−1)Q are arranged at the four corners of

1.	Four positive charges (2√2−1)Q are arranged at the four corners of a square. Another charge q is placed at the centre of the square. For what value of q , is the resulting force acting on each corner charge be zero ?
Answer» Four positive charges $(2 \sqrt{2} - 1) Q$ are arranged at the four corners of a square. Another charge $q$ is placed at the centre of the square. For what value of $q$ , is the resulting force acting on each corner charge be zero ?

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Four positive charges (2√2−1)Q are arranged at the four corners of a square. Another charge q is placed at the centre of the square. For what value of q , is the resulting force acting on each corner charge be zero ?

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