Point charges at

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Point charges q1=+3 μCq_1 = +3\,\mu\text{C} at x=0x = 0, q2=−2 μCq_2 = -2\,\mu\text{C} at x=0.10 mx = 0.10\,\text{m}, and q3=+5 μCq_3 = +5\,\mu\text{C} at x=0.20 mx = 0.20\,\text{m} are fixed on the xx-axis. Find the magnitude and direction of the net electrostatic force on q2q_2. (a) 14.4 N14.4\,\text{N} toward +x+x (b) 3.6 N3.6\,\text{N} toward −x-x (c) 3.6 N3.6\,\text{N} toward +x+x (d) 0.36 N0.36\,\text{N} toward +x+x

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