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Question: An electron at point A in the figure has a speed of 1.42Ã-10^6 m/s.

(a) Find the direction of the magnetic field that will cause the electron to follow the semicircular path from A to B .

(b) Find the magnitude of the magnetic field that will cause the electron to follow the semicircular path from A to B .

(d) Find the direction of the magnetic field, that would be needed if the particle were a proton instead of an electron?

(e) Find the magnitude of the magnetic field, that would be needed if the particle were a proton instead of an electron?

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