A charge of +4 µC is placed at the origin O

PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

A charge of +4 µC is placed at the origin O. A charge of −3 µC is fixed at A(4 cm, 0), and another charge of +5 µC at B(0, 3 cm). Calculate the magnitude and direction of the net electrostatic force on the charge at O. Give the direction as the angle below the +X-axis. (Take k = 9 × 10⁹ N m² C⁻².) (a) 211 N,  18∘ below +X-axis211\,\text{N},\;18^{\circ}\text{ below }+X\text{-axis} (b) 67.5 N,  72∘ below +X-axis67.5\,\text{N},\;72^{\circ}\text{ below }+X\text{-axis} (c) 211 N,  72∘ below +X-axis211\,\text{N},\;72^{\circ}\text{ below }+X\text{-axis} (d) 211 N,  72∘ above +X-axis211\,\text{N},\;72^{\circ}\text{ above }+X\text{-axis}

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