1-Three point charges, -Q, 2Q and -Q are placed in a straight line as shown in the figure. The separation between charges is d = 30cm. If Q = 101nC, what is the magnitude of the electric field produced by these three charges at a distance y = 36cm above the central axis?
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2-A type of electrical quadrupole is formed by four loads of magnitude q = 49nC placed at the vertices of a square on side 2a, with a = 20cm. Point P is at a distance "x" from the center of the quadrupole. For x = 135cm, determine the magnitude of the electric field at point P.
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1-Three point charges, -Q, 2Q and -Q are placed in a straight line as shown in...
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