Homework Answers
Magnetic force is given by F=q(v×B)
Since direction of velocity is given upwards towards the top of the screen say along y axis
And magnetic field is towards right i.e x-axis
Then acc. To formula direction of force is given by (v×B) i.e (y×x)= -z
Note: cross product of y and x (i.e y×x) is -z axis.
And in this case -z axis means into the screen
Hence direction of magnetic force on this charge particle is : into the screen.
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