From which direction (left or right) would a proton need to enter in order to pass through the velocity selector below? If the magnetic field produced is 2.67 × 10-5 T and it is possible to shoot protons travelling at 2.0% of the speed of light through the filter, what is the required strength of the electric field? d= 2.5 cm x x x x x x

From which direction (left or right) would a proton need to enter in order to pass through the velocity selector below? If the magnetic field produced is 2.67 × 10-5 T and it is possible to shoot protons travelling at 2.0% of the speed of light through the filter, what is the required strength of the electric field? d= 2.5 cm x x x x x x