Magnetic Force on a Particle Demo: Cathode Ray Tube

This is a demonstration of the force of a magnetic field on a moving charged particle. Electrons traveling horizontally in a cathode ray tube are deflected upward or downward by a horizontal magnetic field that is perpendicular to the velocity of the electrons.

This demonstration was created at Utah State University by Professor Boyd F. Edwards, assisted by James Coburn (demonstration specialist), David Evans (videography), and Rebecca Whitney (closed captions), with support from Jan Sojka, Physics Department Head, and Robert Wagner, Executive Vice Provost and Dean of Academic and Instructional Services.

[sujaymohanty]

One of the best cathode-ray experiments found on youtube
thank you professor that helped
a lot.

[ehehehehehhehehehehe]

Thank you for your simple but very good demonstration

[invincible_]

Best cathode ray experiment. ...
Thank you very much sir

[easychmu]

hats off to you sir .... I was searching this video since 2 days and I cant find satisfactory answer . but your this video is mind blowing .... your way of teaching is amazing .... simple and understandable. again thank you much sir for help. may GOD bless you.

[easychmu]

I am aslo giving the link of this video to my students. alot sir

[amanjames]

These videos are the pride of online world

[parkmochi]

Thanku so much for explaining I was trying to figure it out for so long

[shaheen]

Thank you so much, this was really helpful

[mrkoala]

0:32 this guy is an x-ray vision robot confirmed.

[mrbrown]

So why is the power supply chattering ?
Is that a charge/discharge cycle we're hearing. ?
Something like a flyback transformer on an old TV
that is arcing where it shouldn't be...?

[hgfashiondesigner]

You have good experiment with good experience

[zakiashahnaz]

Can you please make a demo of canal rays

[raulmg]

Para cargas negativas es mejor utilizar la mano izquierda y para cargas positivas la mano derecha.

[rjadolf]

Question: Does that electron flow also has a magnetic field around it? and if so I'd like to know if we for example put only the north pole of a magnet all the way around the ray will there be parts where the ray will be attracted to the magnet and others where it will be repelled?

Thanks!

[muhimmen]

100x better then teacher explaning it on Whireboard

[mast_duniya]

If we connect a ameter it's wire what is the current?

[arcangel]

Sir it would be helpful if we could know the equipments used and how they were assembled.. Thank you!!!!

[chaitanyagatreddi]

Why is it that the positively charged particles deflect upwards while negatively charged particles deflect downwards, acc. to the right-hand rule, as shown in the video?

[detss]

Sir Instead of right hand rule
can we use Fleming left hand rule ?

[phandinhthanh]

What is the fluorescent screen inside the CRT made of? I've been wondering for a long time.