- #1
thursdaytbs
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The question goes as follows:
The correct answers are:
(a) +1.5q
(b) +4q
(c) +4q
Although, my logic doesn't seem to give me these answers, I was wondering if anyone can explain why and how to approach this problem.
My logic goes as follows:
Sphere A = +5q
Sphere B = -q
Sphere C = 0
"Spheres A and B are touched together and then seperated. " Resulting in Sphere A = +4q, Sphere B = 0, Sphere C = 0
"Sphere C is then touched to sphere A and separated from it." Resulting in Sphere A = 0, Sphere B = 0, Sphere C = +4q
"Lastly, sphere C is touched to sphere B and separated from it." Resulting in Sphere A = 0, Sphere B = +4q, Sphere C = 0
Anyway, we just began this chapter and my understanding of it is extremely minimal so that's why I'm probablly going about it extremely wrong. Just wondering if anyone could help me out and explain how it works?
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +5q. Sphere B carries a charge of -q. Sphere C carries no net charge. Spheres A and B are touched together and then seperated. Sphere C is then touched to sphere A and separated from it. Lastly, sphere C is touched to sphere B and separated from it. (a) How much charge ends up on sphere C? What is the total charge on the three spheres (b) before they are allowed to touch each other and (c) after they have touched?
The correct answers are:
(a) +1.5q
(b) +4q
(c) +4q
Although, my logic doesn't seem to give me these answers, I was wondering if anyone can explain why and how to approach this problem.
My logic goes as follows:
Sphere A = +5q
Sphere B = -q
Sphere C = 0
"Spheres A and B are touched together and then seperated. " Resulting in Sphere A = +4q, Sphere B = 0, Sphere C = 0
"Sphere C is then touched to sphere A and separated from it." Resulting in Sphere A = 0, Sphere B = 0, Sphere C = +4q
"Lastly, sphere C is touched to sphere B and separated from it." Resulting in Sphere A = 0, Sphere B = +4q, Sphere C = 0
Anyway, we just began this chapter and my understanding of it is extremely minimal so that's why I'm probablly going about it extremely wrong. Just wondering if anyone could help me out and explain how it works?