(b) Three point charges are at the corners of a equilateral triangle as shown in figure. Find the magnitude and direction of the resultant electrostatic force on +7uC charge. [Given Data, Coulomb constant ke 8.99x10° Nm2/C'] [5 Marks] 7.00 µC 0.300 m 60.0° 500 µC -6.00 µC
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