An electron enters a magnetic field at right | vedclass

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(D) According to Fleming's left-hand rule,the direction of the force on a moving charge is determined by the orientation of the magnetic field and the

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into the page

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(D) According to Fleming's left-hand rule,the direction of the force on a moving charge is determined by the orientation of the magnetic field and the direction of the conventional current.Since the electron is a negatively charged particle moving downwards,the direction of the conventional current is upwards.The magnetic field is directed towards the right.Applying Fleming's left-hand rule: point the index finger in the direction of the magnetic field (right),and the middle finger in the direction of the current (upwards). The thumb will point into the page.Therefore,the force acting on the electron is directed into the page.

An electron enters a magnetic field at right angles to it as shown in the figure. The direction of force acting on the electron will be:

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