Exercise 27.15 Part A An electron at point A in the figure (Figure 1) has a spee

Question

Exercise 27.15 Part A An electron at point A in the figure (Figure 1) has a speed vo of 1.60x106 m/s Find the magnitude of the magnetic field that will cause the electron to follow the semicircular path from A to B Submit My Answers Give Up Part B Find the direction of the magnetic field that will cause the electron to follow the semicircular path from A to B O out of the page into the page Submit My Answers Give Up Figure 1 Part C Find the time required for the electron to move from A to B 0 Submit My Answers Give Up Provide Feedba K- -10.0 cm

Explanation / Answer

(a) B=mv/eR = 1.822 x 10-2 Tesla

(b) According to the right hand rules, in order for the electron to have the given path, the field must be in to the page.

(c) Time requried to travel is equal to the half of the time period of the electron in one circular orbit

t=T/2 = pi/w = pi R/v = 9.81 x 10-8 seconds

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