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In Figure 20.2 is a velocity selector that can be used to measure the speed of a charged ...

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In Figure 20.2 is a velocity selector that can be used to measure the speed of a charged ...

Figure 20.2

In Figure 20.2 is a velocity selector that can be used to measure the speed of a charged particle. A beam of particles is directed along the axis of the instrument. A parallel plate capacitor sets up an electric field E which is oriented perpendicular to a uniform magnetic field B. If the plates are separated by 3 mm and the value of the magnetic field is 0.3 T, what voltage between the plates will allow particles of speed

to pass straight through without deflection?

• 450 V

• 140 V

• 1,400 V

• 2,800 V

• 70 V

Textbook

College Physics

Edition: 10^th

Authors: Young, Adams, Chastain

Read 116 times

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BananaMan796

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