Q.Two point charges +q and -q are placed at distance 2a apart. The electric field at the midpoint is

zero

\dfrac{1}{4\pi \epsilon_0} \dfrac{2q}{a^2}

towards +q

\dfrac{1}{4\pi \epsilon_0} \dfrac{q}{a^2}

towards +q

\dfrac{1}{4\pi \epsilon_0} \dfrac{4q}{a^2}

towards +q

The correct solution involves applying the fundamental concept to derive the final value step by step...

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