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Question

Consider a beam of electrons moving perpendicular to a uniform magnetic field of 10 Tesla as shown in the figure. The beam carries a current of 105 amp. The force on 1 m length of beam is :

143663_3f24df28aea74ec4868c943cb18a7c3d.png

A
105N
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B
106N
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C
103N
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D
104N
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