Eugen's Solution to

6 Correct Solutions including Ulf Haller

[@rudidfi]

Sir , do you know H.C verma , i think he is your classmate 😄

[@IItian__Aim-rb3zw]

I litreally Love yourphysics exper.. Videos Lot much , And i fall into Love in Physics Because of You!!!

[@IItian__Aim-rb3zw]

Sir biggest Fan sir

[@mdreugen]

I would add that last time I checked the answers Ulf Haller’s solution was also correct!

[@lecturesbywalterlewin.they9259]

my apologies to Ulf!!!

[@The_Green_Man_OAP]

​​@@lecturesbywalterlewin.they9259 Carl Hansen made an impressive contribution wrt this problem on "geogebra". It is very interesting. It depicts the E-field and Voltage between the two rings and you can manually tune it with sliders.

[@ulfhaller6818]

Thanks Eugen and dr Lewin! I was just wondering, since I got 8 likes for my solution, that perhaps it could be a warning that I had made some mistake 😄. Best regards, /Ulf

[@ulfhaller6818]

@@The_Green_Man_OAP I did the same in Desmos, but only for the E-field.

[@rudidfi]

Sir , what book would you refer to me for physics 🙂, as i am preparing for neet exam

[@lecturesbywalterlewin.they9259]

ask your teachers

[@avikhatiwada1732]

SIR ONE QUESTION Of A.C A.C mains of 200 volts & 50 hz is joined to a circuit containing an inductance of 100mH & resistance of 200ohm in series. Calculate the power consume ?

[@lecturesbywalterlewin.they9259]

piece of cake - *watch my 8.02 lectures*

[@avikhatiwada1732]

Okey sir

[@iamdaniloalmeida]

only one component is consuming power in your circuit. think about that

[@mooon466]

Sir, can you travel time? Is it practically possible?Can you travel at the speed of light?

[@lecturesbywalterlewin.they9259]

use google

[@mohamadhamoudy8232]

Dear Professor Walter , have a good day , please could you kindly solve one numerical problem regarding lightening bolt striking a broadcasting mast , to indicate the effect of radius of blunt end of a lightening rod , thanks and best regards .

[@lecturesbywalterlewin.they9259]

I do not solve problems for viewers - that too time consuming

[@mohamadhamoudy8232]

Ok , Thanks a lot Professor Walter @@lecturesbywalterlewin.they9259

[@SanjayKumar-jm8oe]

Sir I am a biggest fan of your..❤Like my comment for all biggest fan...👍🏻

[@L.NEVER.LOSES.]

sir btw for future qns .........and answers can i mail u?

[@lecturesbywalterlewin.they9259]

sure my email address is εΘσ/ς@lewin.com

[@utkarshrajpoot6045]

Respected sir. A student from India this side. I am very much interested in astronomy. But not in engineering. What should I do?

[@lecturesbywalterlewin.they9259]

Get aq PhD in Astronomy/astrophysics

[@abulkhayer4898]

I'm a 8th standard student...but please let me know what is De broglie Hypothesis???

[@lecturesbywalterlewin.they9259]

don't waste my time - use google

[@wsjugaadfan3430]

I am too here

[@wsjugaadfan3430]

Did you understand those equation

[@The_Green_Man_OAP]

🙇😁🏆

[@ogyt1718]

I like you

[@sakshiyadav304]

Hi sir😊

[@lecturesbywalterlewin.they9259]

I have a nice picture of Krishna on my wall - it was given to me by a friend in India when I gave 8 lectures in 2014

[@oldtvnut]

I thought I got the answer, now have to check for typos.

[@lecturesbywalterlewin.they9259]

I remembr having read your solution and I sent it to Eugen and to Keith. I recall that they both agreed that it was not correct

[@ulfhaller6818]

I looked very quickly on your answer and I think you have a typo. I see -(Q/k), but it should be -(Q*k).

[@oldtvnut]

Thank you!@@ulfhaller6818

[@KeithandBridget]

@@ulfhaller6818 I do remember one solution had that mistake.

[@oldtvnut]

@@ulfhaller6818 Thanks much!

[@hanslepoeter5167]

Out of my reach. By far .....

[@ani-sasuke-me_way7.]

1st comment 🎉

[@korelgokce4008]

🧡👌🤌💞🙏✍️

[@godisgood2482]

Can I be with you

[@sdgamerz5230]

1st comment ❤❤❤❤

[@g0joxaf76]

Honestly the comments are so dumb💀. Y'all are asking professor such silly questions?