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5/30 MCQs for:
Electric fields

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?

Two charged objects attract each other with a certain force. If the charges on both objects are doubled with no change in separation, the force between them:

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?

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

A positive point charge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has