Consider the configuration of charges shown in the figure. If a negative charge
ID: 1530170 • Letter: C
Question
Consider the configuration of charges shown in the figure. If a negative charge is move to the left side of the left, what will happen to the electric potential energy? it will increase it will decrease it will remain the same For the same configuration, how many of the positive charges would need to be changed to negative to achieve a total electric potential energy of zero? 1 2 3 it is already zero If I place a negative charge in the exact middle of the configuration, is the total electric potential energy net negative still positive, but smaller now zero If the charges started in this configuration but were now allowed to move, which best describes their motion: move away along the horizontal direction move away along the vertical direction move away along the diagonal directions of the squareExplanation / Answer
16) b. It will decrease. The distance keeps on increasing and thus reduces the total potential energy.
17) b. 2 . 2 negative charges are required to cancel out the ffect of the remaining postive charges.
18) b. still poisitve, but smaller. Electric potential energy is a scalar quantity and will not cancel out at the center of the configuration if all the charges are positive.
19) c. move along the diagnonal directions of the space. The net force felt by a single positive charge by the remaining 3 positive charge will be along diagonal. So the movement will be along the diagonal of the present configuration.