Two point charges q₁ = 2 μC and q₂ = 1 μC are placed at distances b = 1 cm and a = 2cm from the origin on the y and x axes as shown in figure the electric field vector at point P(a, b) will subtend an angle θ with x-axis given by -

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G1 Physics · Accepted Answer

Step 1: Use superposition, 𝐄 = Σ[1/(4πε₀)] qᵢ 𝐫ᵢ/rᵢ³, or the appropriate continuous-distribution integral. Step 2: Resolve components and exploit symmetry to cancel components. Step 3: Add the surviving components and compare with the choices. Final: B: tan θ = 2.