Answered: You observe an electron moving on your…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter19: Magnetism

Section: Chapter Questions

Problem 52P

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Question

You observe an electron moving on your screen in a clockwise circle of radius 6.12 cm, at a constant speed of 6.27 x 10^6 m/s. Suppose that the electrons circular motion is due to the presence of a uniform magnetic field.

For this situation above, what is the direction of the magnetic field?

		Out of the screen (toward you)
		Into the screen (away from you)
		Right
		Left

Expert Solution

Step 1

To determine the magnatic field,

$r = \frac{m v}{q B} B = \frac{m v}{q r} B = \frac{9.1 \times 10^{- 31} \times 6.27 \times 10^{6}}{1.6 \times 10^{- 19} \times 0.0612} B = 582.7 \times 10^{- 6} T$

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