Determine the direction of the force (if any) that will act on the charge in eac

Question

Determine the direction of the force (if any) that will act on the charge in each of the following situations. A positive charge within an electric field that points downward. A negative charge within an electric field that points to the right. A positive charge moving to the right in a magnetic field that points into the screen. A negative charge moving downward in a magnetic field that points out of the screen. A positive charge moving to the left in an electric field that points out of the screen. A negative charge moving out of the screen in a magnetic field that points into the screen.

Explanation / Answer

On a positive charge , force by electric field acts in the direction of electric field. hence direction of force : Downward

On a negative charge , force by electric field acts in the opposite direction of electric field.

hence direction of force : Left

using right hand rule , direction of force comes out to be Upward

using right hand rule , direction of force comes out to be Rightward

direction of force = direction of electric field = outward

No force , since the negative charge moves parallel to the direction of magnetic field

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