Map Sapling Learning macmillan learning Determine the direction of the force (if

Question

Map Sapling Learning macmillan learning 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 upward. upward A negative charge within an electric field that points to the left. to the right A positive charge moving into the screen in a magnetic field that points to the right A negative charge moving upward in a magnetic field that points out of the screen. A positive charge moving to the left in an electric field that points into the screen. upward A negative charge moving out of the screen in a magnetic field that points into the screen. out of the screen zero force upward downward into the screen to the left to the right

Explanation / Answer

upward

to the right

downward - direction of force is given by cross product of velocity and magnetic field vectors

to the left - direction of force is given by cross product of velocity and magnetic field vectors

into the screen - force on positive charge is in direction of elecyric field

zero force - since magnetic field and velocity are parallel, force is zero

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