Three Positive and Equal Charges Q₁, Q₂, and Q₃ Are

question 38

Multiple Choice

Three positive and equal charges Q₁, Q₂, and Q₃ are at the corners of an equilateral triangle as shown. Point P is at the midpoint of the line between Q₁ and Q₃. The electric field at P is

• A) zero.
• B) not zero and is directed along the line from P to Q₃.
• C) not zero and is directed along the line from P to Q₂.
• D) not zero and is directed along the line from Q₁ to Q₂.
• E) None of these is correct.

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