An infinitely long line of charge has a linear charge density of 5.00×10−12 C/m. A proton is at distance 18.0cm from the line and is moving directly toward the line with speed 1500 m/s.
a) Calculate the potential of an infinitely long line from the electric field.
b) Calculate the force felt by the proton when it is 18 cm from the line
c) What is the maximum approximation of the proton to the load line?
d) What is the force felt by the proton in the distance of part c?
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