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Point charges, Q1 = +50 nC and Q2 = -98 nC, are placed as shown in the figure(ab

ID: 2236435 • Letter: P

Question

Point charges, Q1 = +50 nC and Q2 = -98 nC, are placed as shown in the figure(above), an external force transports an electron from point A to point B. The work done by the external force is:


Point charges, Q1 = +54 nC and Q2 = -77 nC, are placed as shown in the figure(above), a point on the positive y-axis lies on the V = 0 equipotential surface. The y-coordinate of the point, in SI units, is


A 4 ?C negative charge is attracted to a large, well-anchored, positive charge. How much kinetic energy does the negatively charged object gain if the potential difference through which it moves is 3 mV?

Two 3.0 ?C charges lie on the x-axis, one at the origin and the other at 18 m. A third point is located at 54 m. What is the potential at this third point relative to infinity? (The value of k is 9.0

Explanation / Answer

a) Work done = 9*10^9*(1.6*10^-19)*(50*10^-9/0.6 - 98*10^-9/1) = -2.11*10^-21 J