A charge is at the origin and a charge is at

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

Problem

A +2.0 μC+2.0\,\mu\text{C} charge is at the origin and a −2.0 μC-2.0\,\mu\text{C} charge is at (0.40 m,0)(0.40\,\text{m},0). Find the magnitude and direction of the net electric field at the point (0,0.30 m)(0,0.30\,\text{m}). (a) 2.50×105 N C−12.50\times10^{5}\,\text{N C}^{-1} at 104∘104^{\circ} from the +x+x-axis (b) 1.67×105 N C−11.67\times10^{5}\,\text{N C}^{-1} at 70∘70^{\circ} above the +x+x-axis (c) 1.60×105 N C−11.60\times10^{5}\,\text{N C}^{-1} at 57∘57^{\circ} above the +x+x-axis (d) 1.67×105 N C−11.67\times10^{5}\,\text{N C}^{-1} at 110∘110^{\circ} from the +x+x-axis

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