Physics question, can someone please help! Here is the question: As shown in the
ID: 1261830 • Letter: P
Question
Physics question, can someone please help! Here is the question:
As shown in the figure, an electron is fired with a speed of 3.54 X 10^6 m/s through a hole in one of the two parallel plates and into the region between the plates separated by a distance of 0.18 m. There is a magnetic field in the region between the plates and, as shown, it is directed into the plane of the page (perpendicular to the velocity of the electron). Determine the magnitude of the magnetic field so that the electron just misses colliding with the opposite plate.Explanation / Answer
if elecrtron just misses te other plate it mean electron is following the circular path of radius as seperation of the two plate ie 0.18 m
therefore
r = (mv) / (qB)
0.18 = (9.1*10^(-31) * 3.54*10^(6)) / (1.6*10^(-19) * B )
therefore
calculate B by solving above equation.