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An electron is travelling horizontally towards east. A magnetic field in vertically downward direction exerts a force on the electron along
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Correct option is D
Fleming's left hand rule is used to determine the direction of force.-ev→ × B→=F→(v→×B →) is directed towards north .Therefore -(v→×B→) is directed towards south.Similar Questions
A charged beam consisting of electrons and positrons enter into a region of uniform magnetic field B perpendicular to field, with a speed v. The maximum separation between an electron and a positron will be (mass of electron = mass of positron = m)
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