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EXERCISE 1. Two point charges Q1 = 10µc and Q2 = -2µc are arranged along...

EXERCISE
1. Two point charges Q1 = 10µc and Q2 = -2µc are arranged along the x-axis at x =0 and x =4m respectively. Find the positions along the x-axis where v = 0.
2. Find the change in electrical potential energy of an electron as it moves from a
distance r1=1.0cm to r2=3.0cm from a point charge of 0.5µc. Ans.
∆𝑢 = 4.8 × 10−14j?

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