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kj2007qd kj2007qd
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3 years ago
A charge Q = -820 nC is uniformly distributed on a ring of 2.4 m radius. A point charge q = +530 nC 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? (e = 1.60 × 10-19 C, k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2)



▸ +8.7 × 10-17 J

▸ -7.2 × 10-18 J

▸ +1.0 × 10-16 J

▸ -8.7 × 10-17 J

▸ +7.2 × 10-18 J
Textbook 
Essential University Physics

Essential University Physics


Edition: 3rd
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kj2007qd Author
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3 years ago
This calls for a celebration Person Raising Both Hands in Celebration
Marcie D
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Yesterday
Good timing, thanks!
jmelchor77
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2 hours ago
Helped a lot
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