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5/30 MCQs for:
Electric fields
Three identical point charges of 2.0 µC are placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?
Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC charge?
What are the magnitude and direction of the electric field at a distance of 1.50 m from a 50.0-nC charge?

Two charged objects are separated by a distance d. The first charge is larger in magnitude than the second charge.

A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the electric field at the location of the test charge?