- #1
scrubber
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Homework Statement
Three positive charges lie on the x-axis; q1 = 15 μC is at the origin, q2 = -30 μC is at x = 2 m, and q3 = 15 μC is a x = 3 m. ( please also refer to the attachment.)
Find the electric potential and electric field at point “P” aroused from q1, q2 and q3.
The Attempt at a Solution
The suggested answer is attached.
But I don't understand why q1 is also counted in both answers, and why the corresponding distance(r) is 1.
So weird to me... please help!