The following two questions refer to the diagram below: Two charges, +0 and-Q (e

Question

The following two questions refer to the diagram below: Two charges, +0 and-Q (equal in magnitude but opposite in sign) are fixed at a distance a from the origin on the x-axis. Point B is located at a distance b from the origin on the y- axis, and point C is located a distance c to the right of the charge+0 a=2cm b=5cm Q=7pC -0 10. Now, a charge, q,-+l pc, is brought in from infinity and placed at point B. The total potential energy of the charge collection: a. increases b. remains unchanged c. decreases 11. A fourth charge, q.-+2 ,C, is now placed at point C. The charge qus released from rest, while the other three charges are held fixed. Given that the mass of qu is ma 0.1 kg, find the speed, va, of qs after it has traveled very far away from the other charges (Le, to infinity). a, v~ 33.84 m/s C. ve 8.25 m/s d, v~ 14.41 m/s e. It does not travel away from the charges

Explanation / Answer

Remaims Unchanged. As the potential energy does not come into picture in this case

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