A charge is fixed at the origin

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

Problem

A charge q1=+5.0 μCq_1=+5.0\,\mu\text{C} is fixed at the origin. A second charge q2q_2 is placed at the point (0.04 m,0.03 m)(0.04\,\text{m},0.03\,\text{m}). The force on q2q_2 due to q1q_1 is measured to be F=(−3.0i^−2.25j^) N\mathbf F = (-3.0\hat i-2.25\hat j)\,\text{N}. Determine the magnitude and sign of q2q_2.

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