Particle Detector: A 2.05 mA beam of charged particles passes through a velocity selector that is 2.88 m long. Only molecules with a particular speed leave the velocity selector and enter the detecting region. velocity X X selector X X XXXXXXX XX XXXXXXX XX X X incoming particles X X | E X B uniform field (a) The magnetic field in the velocity selector has a strength of 0.98 T and the strength of the electric field is 1350 V/m. What is the speed of the particles that pass through the velocity selector? (b) The magnetic field in the detecting region has a strength of 0.08 T. Many particles strike the screen 40.4 mm above the entry point What is the charge-to-mass ratio (q/ m) of these particles? detecting plate

Particle Detector: A 2.05 mA beam of charged particles passes through a velocity selector that is 2.88 m long. Only molecules with a particular speed leave the velocity selector and enter the detecting region. velocity X X selector X X XXXXXXX XX XXXXXXX XX X X incoming particles X X | E X B uniform field (a) The magnetic field in the velocity selector has a strength of 0.98 T and the strength of the electric field is 1350 V/m. What is the speed of the particles that pass through the velocity selector? (b) The magnetic field in the detecting region has a strength of 0.08 T. Many particles strike the screen 40.4 mm above the entry point What is the charge-to-mass ratio (q/ m) of these particles? detecting plate