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September 1, 2015

Homework Help: physics

Posted by wendlen on Tuesday, April 23, 2013 at 9:45pm.

Consider three charges q1 = 6.0 C, q2 = 1.8 C, and q3 = -2.8 C, arranged as shown below.
Q1 is positive and is 3 cm away from Q2. Q2 is also positive and is 2 cm away from Q3 which is negative.
(a) What is the electric field at a point 1.0 cm to the left of the middle charge?
(b) What is the magnitude of the force on a 1.1 C charge placed at this point?

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