Charge to Mass Ratio of Electron || Class 11 Chemistry|| Structure of Atom || Part - 3

Trivandrum Bright Academy
Trivandrum Bright Academy
2.2 هزار بار بازدید - 4 سال پیش - +1 Chemistry Chapter Structure of
+1 Chemistry Chapter Structure of Atom
J J Thomson's experiment to determine the charge to mass ratio of an electron.
J.J Thomson was able to measure the ratio of the electrical charge to the mass of the electron using a cathode ray discharge tube.
He applied electrical and magnetic field perpendicular to each other as well as to the path of the electrons.
when  the magnetic field alone is turned on electron deflects.
when electrical field alone is turned on ,the electron deflects.
When both the magnetic and electric fields are off (or) when they are balanced, so as to cancel each other's effects, they pass straight.
After doing these experiments, he was able to determine the value of charge to mass ratio as.
e / me = 1.758820.1011 c kg-1
4 سال پیش در تاریخ 1399/05/26 منتشر شده است.
2,274 بـار بازدید شده
... بیشتر