ew offset-next& PHYS2220UPFALL2018A CHW: Chap 21: Electric Charge and Felds Char

Question

ew offset-next& PHYS2220UPFALL2018A CHW: Chap 21: Electric Charge and Felds Charging an Insulator - Part A hproben expleres the behavior of charge on realitk e on ea s We take as an example akng ngrod sanpended by imulaliog wies Assume that A smal metal ball is given a negaltive charge, then brought near(e, within feer millineters) to end A o rod when the ball approaches it closely this first Sime? Select the expected behavior and the right "ted .nd B (Figr" 1)hthear or'oplem O wealy atracted X Incorrect Try Again;3 attempts remaining 8 5 6 8

Explanation / Answer

strongly repealed

magnitude of repulsive force F = kq1q2/r^2

r is very small and q1 charge on ball is negative and q2 net charge on surface at end A

hence strongly repealed

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