Electricity and Magnetism
# Electric Fields

Three point charges of strengths \( q_1 = 4.0 \times 10^{-6} \text{ C}, \) \( q_2 = 1. 0 \times 10^{-6} \text{ C} \) and \( Q = -4.0 \times 10^{-6} \text{ C}\) are fixed in a right triangle as shown above.

The distance between \( q_1 \) and \( Q \) is \( d_1 = 4.0 \text{ cm}, \) and the distance between \( q_2 \) and \( Q \) is \( d_2 = 3.0 \text{ cm}. \) What is the approximate electric field strength at location of charge \( Q \) due to the other two charges?

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