A small plastic ball of mass m = 3.00 grams is suspended by a string of length L =28.0 cm in a uniform electric field pointing horizontally to the right (as shown in the figure) with a magnitude 1.00 × 10³ N/C. The ball is in equilibrium when the string makes an angle 20.0° with the vertical, as indicated. E a. Is this a positive or negative charge? L b. Find the net charge on the ball.

A small plastic ball of mass m = 3.00 grams is suspended by a string of length L =28.0 cm in a uniform electric field pointing horizontally to the right (as shown in the figure) with a magnitude 1.00 × 10³ N/C. The ball is in equilibrium when the string makes an angle 20.0° with the vertical, as indicated. E a. Is this a positive or negative charge? L b. Find the net charge on the ball.

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Electric Fields

Section: Chapter Questions

Problem 34AP: A charged cork ball of mass m is suspended on a light string in the presence of a uniform electric...

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