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Two point charges 2µC and 3µC are placed...

Two point charges 2µC and 3µC are placed at two corners of an equilateral triangle of side 20cm in free space. Calculate the magnitude of resultant electric field at the third corner of the triangle, if an alpha particle is placed at the third corner, what is the force acting on it? ( charge on alpha particle is 3.2 X10^-19C).

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