An electron is travelling in the east directi | vedclass

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(A) The force on a moving charge in a magnetic field is given by the Lorentz force formula: $\vec{F} = q(\vec{v} 	imes \vec{B})$.Here,the charge of a

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South

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(A) The force on a moving charge in a magnetic field is given by the Lorentz force formula: $\vec{F} = q(\vec{v} 	imes \vec{B})$.Here,the charge of an electron is negative $(q = -e)$.The velocity $\vec{v}$ is in the east direction,and the magnetic field $\vec{B}$ is in the upward direction.Using the right-hand rule for the cross product $\vec{v} 	imes \vec{B}$: the direction of $\vec{v} 	imes \vec{B}$ is towards the north.Since the electron has a negative charge,the force $\vec{F} = -e(\vec{v} 	imes \vec{B})$ will be in the opposite direction of $\vec{v} 	imes \vec{B}$.Therefore,the force on the electron is towards the south.Alternatively,using Fleming's left-hand rule for a negative charge: point the index finger upward (magnetic field),the middle finger towards the west (opposite to the electron's velocity),and the thumb will point towards the south.

An electron is travelling in the east direction and a magnetic field is applied in the upward direction. In which direction will the electron deflect?

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