Gwoup Fizik Klas 11 lan te sèvi ak dènye pyès nou an nan nouvo ekipman - yon tib doub gwo bout bwa - pou mezire rapò chaj ak mas (q/m) nan elektwon. Elektwon yo accelerated to a velocity of up to ten million metres per second, before being bent into a circular path by a magnetic field. By measuring the diameter of the circle and the current in the field coils, q/m can be determined. The path of two electron beams can be seen as orange lines in the tube, caused by the electrons striking neon atoms present at low pressure.
Entènasyonal Lekòl 
