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 negative charge within an electric field that points upward. downward A positive charge within an electric field that points to the right. to the right A negative charge moving out of the screen in a magnetic field that points to the left. upward A positive charge moving into the screen in a magnetic field that points downward. to the left A negative charge moving to the I electric field that points into the screen. to the right A negative charge moving to the left in a magnetic field that points to the right. out of the screen upward out of the screen zero forceto the right downward into the screen to the left

Explanation / Answer

a)

For a negative charge the force will be directed opposite to the direction of electric field

So, answer is : downward

b)

For a positive charge the electric force will be towards the direction of electric field

So, answer is : right

c)

Using right hand thumb rule : the direction of magnetic force is towards : upwards

d)

Similalrly, the direction is : towards left

e)

Electric force will be directed opposite to the direction of electric field for a negative charge

So, answer is : out of the screen

f)

Here, magnetic force will be 0 as the angle between the velocity and magnetic field is 180 deg

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