Three charges are at the corners of an isosceles triangle as shown in the figure

Question

Three charges are at the corners of an isosceles triangle as shown in the figure (Figure 1) . The

Three charges are at the corners of an isosceles triangle as shown in the figure (Figure 1) . The plusminus 5.00?Ccharges form a dipole. Find the magnitude of the force the -10.00?Ccharge exerts on the dipole. Find the direction of the force the -10.00?C charge exerts on the dipole.(Suppose that y-axis directs to the top of the image.) For an axis perpendicular to the line connecting the plusminus 5.00?C charges at the midpoint of this line, find the torque (magnitude) exerted on the dipole by the -10.00?C charge.

Explanation / Answer

Part C

Torque = force*perpendicular distance

By pythagorean theorem, perpendicular distance = ((2^2-(3/2)^2)^1/2)/100=0.01323m

So, Torque = 1687.5N*1.01323m=22.32Nm

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