(II) Two point charges, Q₁ = -25 μC and Q₂ = +45 μC, are separated by a distance of 12 cm. The electric field at the point P (see Fig. 21-58) is zero. How far from Q₁ is P? 21 -25 μC FIGURE 21-58 Problem 36. P X 12 cm 22 +45 μC
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