two metal balls A and B of negligible radius are 12 points Previous Answers SerC

Question

two metal balls A and B of negligible radius are 12 points Previous Answers SerCP10 15. P003. My Notes Ask Your Ter Two metal balls A and B of negligible radius are floating at rest on Space Station Freedom between two metal bulkheads, connected b nconducting thread of length 2.80 m. Ball A carries charge q, and ball B carries charge 2q. Each ball is 1.82 m away from a bulkhead (a) If the tension in the string is 2.45 N, what is the magnitude of q? (Ignore any contribution from induced charge In the bulkheads.) Your response differs from the correct answer by more than 10%. Double check your calculations.

Explanation / Answer

The Tension in the string is balanced by Electrostatic force

F=KQ1Q2/r2 =T

(9*109)*q*2q/1.822=2.45

q=21.23 uC

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