25. Electric Potential
Work From Electric Force
5:00 minutes
Problem 23.82
Textbook Question
Textbook QuestionIn an older television tube (CRT), electrons are accelerated by thousands of volts through a vacuum. If such a television set is laid on its back, would electrons be able to move upward against the force of gravity? What potential difference, acting over a distance of 2.4 cm, would be needed to balance the downward force of gravity so that an electron would remain stationary? Assume that the electric field is uniform.
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