Conceptual Test 1F

Two conducting hollow spheres are placed one inside the other so they share a common center. The inner sphere has a radius of 10 cm and a charge of +7 microcoulombs; the outer sphere has a radius of 20 cm and a charge of -5 microcoulombs.

Points A and B are both 30 cm from the center of the spheres. If an electron is moved from point A to point B by the path shown, the net work done by the electric field is...

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List of conceptual questions for test 1.

Created by Andrew Duffy, Boston University Physics Department.

Last update June 15, 1998