Chapter 19, Problem 45PCE

Predict/Calculate Figure 19-42 shows a system consisting of three charges, q₁ = +5.00 μC, q₂ = +5.00 μC, and q₃ = −5.00 μC, at the vertices of an equilateral triangle of side d = 2.95 cm. (a) Find the magnitude of the electric field at a point halfway between the charges q₁ and q₂ (b) Is the magnitude of the electric field halfway between the charges q₂ and q₃ greater than, less than, or the same as the electric field found in part (a)? Explain. (c) Find the magnitude of the electric field at the point specified in part (b).