A positive charge enters a region of uniform magnetic field as shown in the figure.The initial direction of deflection of the charge is

Question

Quizplus · Accepted Answer

According to the right-hand rule, the direction of the magnetic force on a positive charge is perpendicular to both the velocity of the charge and the direction of the magnetic field. In this case, the magnetic field is pointing upwards and the velocity of the charge is to the right, so the magnetic force will be directed out of the page, causing the charge to deflect upwards (towards the top of the page). Therefore, the best choice is B, out of the page.

A Positive Charge Enters a Region of Uniform Magnetic Field