Question

In a beam of electron is moving from the wall at your back to the waterfront the magnetic field in the room is perpendicular upward in what direction The Beam will be deflected.​

Answer 1

Answer-

It will deflect in upward direction.......alpha particles will deflect in downwards direction the rule used is Flemming's Left hand rule

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Answer 2

Fleming's Left hand rule

Explanation:

We can find the direction of the deflection of the beam by applying the Fleming's Left hand rule.

Given the direction of the magnetic field is upward and current is moving away from the wall at your back, the beam will be deflected upwards as the force will be acting upwards as pointed by your thumb.

Please refer to the attached picture for the Fleming's left hand rule.