Problem 10 A beam of protons is directed in a straight line along the-z directio

Question

Problem 10 A beam of protons is directed in a straight line along the-z direction through a region of space in which there are crossed electric and magnetic fields. The electric field is 350 V/m in the -y direction and the protons move at a constant speed of 10 m/s 5 1) what must be the magnitude of the magnetic field such that the beam of protons continues along its straight-ine trajectory? (Express your answer using two significant figures.) mT Submit You currentiy have O submissions for this question Only 10 submission are allowed You can make 10 more submissions for this question.

Explanation / Answer

v = E/B

B = E/v

B = 350 V/m / 10^5 m/s

B = 350 x 10^-5 T

B = 3.5 x 10^-3 T

B = 3.5 mT

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