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A Charge Q = -820 NC Is Uniformly Distributed on a Ring

Question 32

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A charge Q = -820 nC is uniformly distributed on a ring of 2.4 m radius.A point charge A charge Q = -820 nC is uniformly distributed on a ring of 2.4 m radius.A point charge is fixed at the center of the ring.Points A and B are located on the axis of the ring,as shown in the figure.What is the minimum work that an external force must do to transport an electron from B to A? ,k = 1/4πε<sub>0</sub> = A) -8.7 × 10<sup>-17</sup> J B) +7.2 × 10<sup>-18</sup> J C) +1.0 × 10<sup>-16</sup> J D) +8.7 × 10<sup>-17</sup> J E) -7.2 × 10<sup>-18</sup> J is fixed at the center of the ring.Points A and B are located on the axis of the ring,as shown in the figure.What is the minimum work that an external force must do to transport an electron from B to A? A charge Q = -820 nC is uniformly distributed on a ring of 2.4 m radius.A point charge is fixed at the center of the ring.Points A and B are located on the axis of the ring,as shown in the figure.What is the minimum work that an external force must do to transport an electron from B to A? ,k = 1/4πε<sub>0</sub> = A) -8.7 × 10<sup>-17</sup> J B) +7.2 × 10<sup>-18</sup> J C) +1.0 × 10<sup>-16</sup> J D) +8.7 × 10<sup>-17</sup> J E) -7.2 × 10<sup>-18</sup> J ,k = 1/4πε0 = A charge Q = -820 nC is uniformly distributed on a ring of 2.4 m radius.A point charge is fixed at the center of the ring.Points A and B are located on the axis of the ring,as shown in the figure.What is the minimum work that an external force must do to transport an electron from B to A? ,k = 1/4πε<sub>0</sub> = A) -8.7 × 10<sup>-17</sup> J B) +7.2 × 10<sup>-18</sup> J C) +1.0 × 10<sup>-16</sup> J D) +8.7 × 10<sup>-17</sup> J E) -7.2 × 10<sup>-18</sup> J A charge Q = -820 nC is uniformly distributed on a ring of 2.4 m radius.A point charge is fixed at the center of the ring.Points A and B are located on the axis of the ring,as shown in the figure.What is the minimum work that an external force must do to transport an electron from B to A? ,k = 1/4πε<sub>0</sub> = A) -8.7 × 10<sup>-17</sup> J B) +7.2 × 10<sup>-18</sup> J C) +1.0 × 10<sup>-16</sup> J D) +8.7 × 10<sup>-17</sup> J E) -7.2 × 10<sup>-18</sup> J


A) -8.7 × 10-17 J
B) +7.2 × 10-18 J
C) +1.0 × 10-16 J
D) +8.7 × 10-17 J
E) -7.2 × 10-18 J

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