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Moving Charges and Magnetism — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsMoving Charges and Magnetism1 Mark
Question
An electron does not suffer any deflection while passing through a region of uniform magnetic field. What is the direction of the magnetic field?
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Answer

Magnetic field and motion of electron should be/parallel/anti parallel.

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