By equating the magnetic and electric force(due to which it's following a circular trajectory, thus using the formula of centripetal force) we get: qVB=mV^2/r. On solving which we obtain a relation: e/m=V/Br [equation 1]. Then, by balancing the electric and magnetic field strength: qVB=qE, we get V=E/B[equation 2]. Putting eq 2 in eq 1, we get e/m=E/B^2r. Since, here we knw the electric and magnetic field strength we are providing also, we know the radius of curvature of the path of the trajectory followed {found experimentally} we can find the result by putting in those values.
First deviate the rays with elec field or magnetic field. Its strength would be known. Then introduce the other field so as to apply force in the opposite direction and adjust its strength till deviation is eliminated. Now, force applied by both fields are equal. So equate them, from there, you get values of some required quantities. Then only a few more calculations like measuring the deviation and then you get the charge. As for the mass, I don't if he just plugged the value from Milikan oil drop experiment or did he actually find the ratio through the sole means of his experiment. But that's how much I could help you.
Question is still carried in my mind how anyone can find the charge to mass ratio of the subatomic particle by only observing the deviation?
Me too bro. I thought this video would explain but it didn't.
By equating the magnetic and electric force(due to which it's following a circular trajectory, thus using the formula of centripetal force) we get: qVB=mV^2/r. On solving which we obtain a relation: e/m=V/Br [equation 1]. Then, by balancing the electric and magnetic field strength: qVB=qE, we get V=E/B[equation 2]. Putting eq 2 in eq 1, we get e/m=E/B^2r. Since, here we knw the electric and magnetic field strength we are providing also, we know the radius of curvature of the path of the trajectory followed {found experimentally} we can find the result by putting in those values.
@@shrutisharma2325 how and when did you know this 😢
@@ayushRaj-xc6yl I saw another Yt video on the same topic earlier, wherein this was mentioned.
First deviate the rays with elec field or magnetic field. Its strength would be known. Then introduce the other field so as to apply force in the opposite direction and adjust its strength till deviation is eliminated. Now, force applied by both fields are equal. So equate them, from there, you get values of some required quantities. Then only a few more calculations like measuring the deviation and then you get the charge. As for the mass, I don't if he just plugged the value from Milikan oil drop experiment or did he actually find the ratio through the sole means of his experiment. But that's how much I could help you.
Excellent 👍👍
Simple and excellent 👍💯💯💯. Thanks
Superb sir. .helped alot. Thnx
very visual! it helps to understand. thanks a lot!!
clear-cut explanation thank you so much!
It was a really helpful imaging of the experiment. I now understand ❣️
Great explanation!
awesome 👍👍
Great.....🥰🥰🥰
Thanks so much , you are the a good Mr
👍👍 l understand..this topic thnx
Piece of art of pedagogy !
Thank you =)
Amazing video💖💖
how is the electric field applied if the gas is in the way
Great explation
Thank you so much 😊
VERY good 💗👍👍
Beautiful
Thankyou so so much ❤🥰
And super sir ❤️
Good explanation
💙
nice explaination
Why its end is spherical
Art
Thank you sir 🎉
❤️
thank you sir😇
Ausum
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Faceless England.
Thoda loud
Thank you so much 😊