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Question
Two point charges are +Q and -Q, at the midpoint P the electric field is E due to +Q only then calculate the magnitude of net electric field at point P.
Two point charges are +Q and -Q, at the midpoint P the electric field is E due to +Q only then calculate the magnitude of net electric field at point P.
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Solution
The correct option is D 2E
The electric fields both due to +Q and −Q charge are along positive x direction with a magnitude E.Thus net electric field at point P Ep=E+E=2E
The electric fields both due to +Q and −Q charge are along positive x direction with a magnitude E.
Thus net electric field at point P Ep=E+E=2E
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