Three charges q1, q2 and q3 are placed at the corner of an equilateral triangle

Question

Three charges q1, q2 and q3 are placed at the corner of an equilateral triangle where each side has a length a. The point P is at the middle of the base line.

Part A:

Find the potential at P, for the case where the charges are q1 =?(3q), q2 = q3 = ?q

Please choose one.

Part B:

Consider a di?erent case: q1 = ?(3q), q2 = 2 q, q3 = q. Find the work required to bring another charge q4 from ? to the point P, where q4 = q.

Please choose one.

?(3q) this means the squareroot of 3

Answer both questions for credit please.

Explanation / Answer

Part B: 6. 8kq^2/a.

Dont know what u mean by ?q in Part A, so I can't answer it. sr.

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