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An electron travels to the right, as shown in the figure below, starting in a region of zero magnetic fields, and then entering a region of the uniform magnetic field, pointing into the page, with a magnitude of b = 1.20 mT. x x x x x x x x x x x xx x x x x x x x x x x x X x x x x x B= b B= 0 (a) Once the electron enters the region of the nonzero magnetic field, it travels in a complete semicircle before exiting the region of the field again. (That is, it exits the region moving to the left.) How long (in s) is the electron in the region of the nonzero field. Hints: You are solving for time to travel semi circle which you can do using the; t = But v is not given in the question, now calculate r in terms of v using the condition, as you know that charge particle entering into magnetic field goes into the circular path. Fc = FB mv2 = evB; now solve for r interms of v and plug into the equation for time.

An electron travels to the right, as shown in the figure below, starting in a region of zero magnetic fields, and then entering a region of the uniform magnetic field, pointing into the page, with a magnitude of b = 1.20 mT. x x x x x x x x x x x xx x x x x x x x x x x x X x x x x x B= b B= 0 (a) Once the electron enters the region of the nonzero magnetic field, it travels in a complete semicircle before exiting the region of the field again. (That is, it exits the region moving to the left.) How long (in s) is the electron in the region of the nonzero field. Hints: You are solving for time to travel semi circle which you can do using the; t = But v is not given in the question, now calculate r in terms of v using the condition, as you know that charge particle entering into magnetic field goes into the circular path. Fc = FB mv2 = evB; now solve for r interms of v and plug into the equation for time.

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An electron travels to the right, as shown in the figure below, starting in a region of zero magnetic fields, and then entering a region of the uniform magnetic field, pointing into the page, with a magnitude of b = 1.20 mT. x x x x x * **** х**** *** ** * * ** * х**** B= 0 B= b (a) Once the electron enters the region of the nonzero magnetic field, it travels in a complete semicircle before exiting the region of the field again. (That is, it exits the region moving to the left.) How long (in s) is the electron in the region of the nonzero field. Hints: You are solving for time to travel semi circle Ttr which you can do using the; t But v is not given in the question, now calculate r in terms of v using the condition, as you know that charge particle entering into ma gnetic field goes into the circular path. Fc = FB mv2 = evB; now solve for r interms of v and plug into the equation for time.
Transcribed Image Text:An electron travels to the right, as shown in the figure below, starting in a region of zero magnetic fields, and then entering a region of the uniform magnetic field, pointing into the page, with a magnitude of b = 1.20 mT. x x x x x * **** х**** *** ** * * ** * х**** B= 0 B= b (a) Once the electron enters the region of the nonzero magnetic field, it travels in a complete semicircle before exiting the region of the field again. (That is, it exits the region moving to the left.) How long (in s) is the electron in the region of the nonzero field. Hints: You are solving for time to travel semi circle Ttr which you can do using the; t But v is not given in the question, now calculate r in terms of v using the condition, as you know that charge particle entering into ma gnetic field goes into the circular path. Fc = FB mv2 = evB; now solve for r interms of v and plug into the equation for time.
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