Charges are placed at the vertices of square as shown in di…

Physics Electrostatics Potential & Capacitance Electric Field and Potential,Defference,Energy and Dipole MCQ (Single Correct)

Charges are placed at the vertices of square as shown in diagram. If charge at A and B are interchanged with C and D respectively then-

Only magnitude of electric field will change at the center

Both magnitude and direction of electric field will change at the center

Only direction of electric field at center will change

Both magnitude and direction of electric field will remain unchanged

Text Solution

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The correct answer is:

Electric field E due to a single charge Q is given by

Net electric field due to all the charges at the center O is shown by in the following figure.

We can see that on interchanging the charges at A and B with charges C and D, there is no change on the magnitude, but its direction changes.

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