Point charges each of magnitude $Q$ are placed at three corners of a square as shown in the diagram.
What is the direction of the resultant electric field at the fourth corner?

O C

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O E

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O D

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O B

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Solution

The correct option is B $O E$

Magnitude $= Q$
The direction of the resultant electric field at the fourth corner $= O E$ . Because it is towards the centre.

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Point charges each of magnitude Q are placed at three corners of a square as shown in the diagram.What is the direction of the resultant electric field at the fourth corner?

The correct option is B OEMagnitude =QThe direction of the resultant electric field at the fourth corner =OE. Because it is towards the centre.

Point charges each of magnitude $Q$ are placed at three corners of a square as shown in the diagram.
What is the direction of the resultant electric field at the fourth corner?

The correct option is B $O E$

Magnitude $= Q$
The direction of the resultant electric field at the fourth corner $= O E$ . Because it is towards the centre.