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 negative charge within an electric field that points upward downward A positive charge within an electric field that points to the left. to the left A negative charge moving to the left in a magnetic field that points into the screen to the right A positive charge moving into the screen in a magnetic field that points upwarod. upward A negative charge moving to the right in an electric field that points out of the screen into the screen A negative charge moving out of the screen in a magnetic field that points into the screen zero force to the leftupwardto the rightinto the screenout of the screenzero forcedownward Previous Check Answer Next 1 Exit Y Hint

Explanation / Answer

A positive charge experiences an electrostatic force in the direction of electric field and

a negative charge experiences in opposite direction to the electric field

1) Downward

2) to the left

The force on a positive charge moving in a magnetic field is by

F = q * (v x B)

F = q * v * B * sin(theta)

the direction is given by right hand thumb rule

rule: place the four fingures of your right hand in the direction of velocity and curl towards magnetic field then thumb represents the direction of magnetic force for a positive charge

This is opposite for a negative charge

3) upward

4) to the right

5) into the screen (opposite to electric field)

6) zero force ( sin(180) = 0 , F = 0)

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