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A point charge q2 = - 7.00 nC is located at the origin and charge q1...

A point charge q2 = - 7.00 nC is located at the origin and charge q1 = 5.00 nC is on the x-axis, 40.0 cm from the origin.

a) Find the magnitude and direction of electric field at point P, which has coordinates (40.0 cm,-50.0 cm).

b) Find the force on a charge of 5.00 µC placed at point P.

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