A 0.800 mm -diameter ball bearing has 2.20×109 excess electrons. Part A What is the ball bearing's potential?
charge on bearing
Q = ne = 2.2*10^9*1.6*10^-19 = 3.52*10^-10 C
potential
V = k Q / r
V = 9*10^9*3.52*10^-10 / (0.4*10^-3)
V = 7920 V
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A 0.800 mm -diameter ball bearing has 2.20×109 excess electrons. Part A What is the ball...
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