Two charges $q_1$ and $q_2$ are placed diagonally opposite as shown in the figure.if $q_1=-5 \times 10^{-6} C$ and $q_2= +2 \times 10^{-6} C$. choose the right option/s. (A) the electric potential at corner B of the rectangle is $0.6 \times 10^5 Volt$ (B) the potential at corner A of the rectangle is $0.6 \times 10^5 volt$ (C) the work done in moving a third charge from B to A along the diagonal of the rectangle is 2.52 joule (D) the potential difference between B and A is $8.4 \times 10^5 volt$

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