Calculate the magnitude and sign of the electrostatic force on an electron located…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Calculate the magnitude and sign of the electrostatic force on an electron located 1.00×10−10 m1.00\times10^{-10}\,\text{m} away from: (a) another electron, and (b) a proton. Use k=8.99×109 N⋅m2 ⁣/ ⁣C2k = 8.99\times10^{9}\,\text{N}\cdot\text{m}^2\!\big/\!\text{C}^2 and e=1.60×10−19 Ce = 1.60\times10^{-19}\,\text{C}.

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