Three identical point charges $q$ are placed at each of three corners of a square of side $L$. Find the magnitude and direction of the net force on a point charge $-3 q$ placed (a) at the center of the square and (b) at the vacant corner of the square. In each case, draw a free-body diagram showing the forces exerted on the $-3 q$ charge by each of the other three charges.
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Step 1
Consider a square with side length \( L \). Place the three identical point charges \( q \) at three corners of the square, say at \( (0,0) \), \( (L,0) \), and \( (0,L) \). Show more…
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Three identical point charges $q$ are placed at each of three corners of a square of side $L .$ Find the magnitude and direction of the net force on a point charge $-3 q$ placed (a) at the center of the square and $(b)$ at the vacant corner of the square. In each case, draw a free-body diagram showing the forces exerted on the $-3 q$ charge by each of the other three charges.
Three identical point charges $q$ are placed at each of three corners of a square of side $L$. Find the magnitude and direction of the net force on a point charge $-3q$ placed (a) at the center of the square and (b) at the vacant corner of the square. In each case, draw a free-body diagram showing the forces exerted on the $-3q$ charge by each of the other three charges.
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