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Physics / College Physics 1 / Chapter 22 / Problem 18

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

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An electron in a TV CRT moves with a speed of 6.00×107 m/s

Chapter 22, Problem 18

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QUESTION:

Problem 18PE

An electron in a TV CRT moves with a speed of 6.00×107 m/s , in a direction perpendicular to the Earth’s field, which has a strength of 5.00×10−5 T . (a) What strength electric field must be applied perpendicular to the Earth’s field to make the electron moves in a straight line? (b) If this is done between plates separated by 1.00 cm, what is the voltage applied? (Note that TVs are usually surrounded by a ferromagnetic material to shield against external magnetic fields and avoid the need for such a correction.)

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QUESTION:

Problem 18PE

An electron in a TV CRT moves with a speed of 6.00×107 m/s , in a direction perpendicular to the Earth’s field, which has a strength of 5.00×10−5 T . (a) What strength electric field must be applied perpendicular to the Earth’s field to make the electron moves in a straight line? (b) If this is done between plates separated by 1.00 cm, what is the voltage applied? (Note that TVs are usually surrounded by a ferromagnetic material to shield against external magnetic fields and avoid the need for such a correction.)

ANSWER:

Solution 18PE

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