My physics test is in three hours.... my teacher showed like 3 different long videos demonstrating electroscopes and after 5 minutes of this one I get everything. Thanks!

You're welcome. I'm glad to hear it helped. Thanks for the feedback.

If I have to teach phyics online again, like I am dong now due to Covid 19, I will use this video. This is the only one I have found so far that shows the positive charges and explains that they don't move. Great job.

This one explains better than the other video I've watched. It's simple and easy to understand. So much gratitude mate❤️

@lolOrToT You're welcome! I'm glad you liked it.

@MrTroy354 You're very welcome! Thank YOU for the feedback!

@tateduck Wow, that's great to hear! Congrats. Glad to be of help.

I'm glad I could help. Thanks for letting me know.

I am 15 and a student. I had problem on this topic about electrostatic and now i know how it works already. Thank you so much for uploading this video! :)

@raLphIRE I'm glad you liked it. Thanks!

Good to hear! Thanks for the feedback.

Glad to hear it. Good luck on your test.

Such a perfect, straight to the point video!

Great Video, I finally understand inductive charging

Thank you. This video was so helpful in trying to grasp this concept that many books fail to explain easily.

I'm glad it helped. Good luck on the test!

I cleaned the jar and hit it with a blow dryer, now it works great. Thanks for the reply, and the video!

I'm glad you like it. Thank you.

@Sindyrocks2009 You're very welcome. Glad it helped.

Best video that really explains what happens in an inductive charge. Thanks.

It's because the charges that were removed when you first touched the terminal left the terminal more positively charged, 2:28 in the video. That stronger positive charge is strong enough to attract electrons up from the foils, 2:42 in the video.

You're very welcome. I'm glad I could help.

@ShaneThrice Thanks for letting me know! Makes it worthwhile.

Stellar video and explanations! The simple drawings of electron distribution were invaluable, and I will definitely keep your video in mind when I help out students at after school tutoring. I am an admirer of your work. Thanks so much for being an active facilitator of physics knowledge.

@04LeMboT17 You're welcome. Glad I could help.

THANK YOU this helped me so much for my ap physics class!! your awsome!! this was such a good way to demonstrate it!!

YOu saved my life i needed the answer

Thank you so much RimstarOrg this is the best video I have and will ever watch. Thank you so much! I love the animated charges as well as the voiceover and the side by side comparison. I like how you actually included the count of charges. And you answered all the questions I needed. Bestvideo.

@RimstarOrg

4 жыл бұрын

I'm glad you liked it and super glad it helped! Thanks!

Lord.I understood more from this video than from what i learn hours and hours at school and from my notes

Thank you so much I have a test tomorrow and had no idea about the whole charge by induction but thank to you!

You're welcome. I'm glad it helped.

Wow i got to say your explanation is amazing better than the others

@tutorialconr Glad to hear you think so!

@ComboSmasher You're welcome!

Excellent! Glad it worked! Thanks for letting me know.

Excellent video, thanks for making it! I'm going to share it with my physics students tomorrow.

@redbullion01 You're very welcome. And thanks for subscribing.

You're welcome! Glad I could help.

@DangJfjed I don't know what about the materials determines where they fit in the triboelectric series, which is a table that shows how positive or negative they become relative to each other. If you google "triboelectric series" and look at the list you'll see that there are other plastics that become more negative: polystyrene, acrylic, polyethylene, vinyl, silicon, to name a few.

You're welcome. Glad to help.

@MrKennedy500 Thanks. I'm glad you think so.

@IRmShaDe I rubbed a normal drinking glass and a piece of vinyl cut out from window blinds that you roll up. Wash the glass thoroughly first with soap and hot water and rinse thoroughly to get any grease off. The rubbing takes advantage of the triboelectric effect. See my video "Triboelectric effect/series or triboelectricity" for which materials work and why. There's an annotation at the end of this video to click on for the triboelectric video and a link in the comments.

@xgusROX Good question. I don't see why it would. Those things may be putting out some electromagnetic waves, though they should be shielded to prevent some or all of that. Electromagnetic waves are given off by moving electrons. A charged object consists of en excess or a deficit of electrons, where the number of electrons doesn't change; their just sitting there.

thanks again bro! this helped me in my physics project

Electrons would be attracted from your finger to the terminal by the positively charged glass. When you move your finger away, the electroscope is left with excess electrons. And when you move the glass away, the charges would spread out and the leafs would repel due to the negative charge.

Great informative video man! (It helped with the physics test).

ive got an exam tomorrow and this really helps! Thank you so much :)

Excellent! Good Luck!

@xgusROX A CRT tube type of monitor or TV does cause it to react, even if turned off for a while. The screen is a large capacitor and is charged when turned on and takes a while to loose its charge when turned off. I just tried it with my old TV and it reacted, but I just tried it with my LCD monitor and got nothing. I don't know about all the different types of monitors that exist these days though. Does anyone know if a plasma TV or monitor carries a static charge?

@killerdude25 Electrons will move from the ground to the electroscope and the electroscope will become negatively charged. So when the ground and then the positively charged object are moved away, the negatively charged foils will repel each other. Physically it'll look the same as in the video but electrically everything will be the opposite.

great video! thank you so much. it help me to give demonstration abou this topic in my class. five thumbs 👍👍👍👍👍

This helped me understand so much! Thanks!

@raLphIRE It averages around 8 views a day and seems to rank pretty high in relevant searches. There's probably just not that much interest. But I added "gold" and "leaf" just as you suggested. Thanks for the interest.

@jndhillon Yes:) On a dry day, walk across a carpet with bare feet and you'll be positively charged (triboelectric effect.) That's why you get shocked sometimes when touching a metal object, electrons flow from the object to you. In this video I was more positive than the electroscope so the negatively charged object and the negatively charged leafs pushed negative charge onto me, plus my positiveness attracted some. But you might be negative relative to something that's more positive than you.

+Pragna Varshini the positive charge on the body will attract electrons from the leafs to the terminal leaving the leafs with a net positive charge. Since like charges repel each other the leafs will spread apart. PS There's no Reply button under your comment because of your Google+ settings. - go to your Google+ page, - in the top, right corner click on your thumbnail icon, - in the popup that appears, click on "Settings". - for the 2nd question down "Who can comment on your public posts?" set it to "Anyone".

Thank you for the great explanation.

The straw would be negatively charged. You can see this by googling "triboelectric series" and looking at the table. Materials toward the negative end of the table will become negatively charged when rubbed with materials toward the positive end and vice versa. The farther apart the materials are in the table, the more charged they'll become. Keep in mind that some objects have paints and coatings on them that may interfere.

Thanks! Much better explanation that the one in book :)

easy to understand... very good film, and the animations, wow!

great video

I watched this video for my science class.

You're welcome. Good luck with you lab.

Thank you! That was very helpful!

Thank you so much !!!!! i finally know what to write for my lab

Omggggggg thaaaaaaaankkk youuuuuu realllyyy, but i didntt understandd some of what you said in the last part omgg you speaak so fastttt😩😩😩😩, buut reallyy thankk you so muchhh✨✨✨

The Van der Graaf device does something similar. Offering electrons a different path (constantly, by rotating 2 wheels opposite). What I like about that, is that you put energy in the rotation, not in creating the energy (high voltage).

Well done!

Thank you! a very clear explanation.

you helped with my construction homework THANKYOU!!!!^_^!!!!!!!!

great video!

@IRmShaDe My pleasure.

THANK YOU, YOU R BLESSED BC I HAVE A TEST TMRW AND I TOTALLY GET IT NOW!!! THANKS SO MUCH X100

I assigned this video to my science class. They are supposed to leave a comment that they watched this video.

@juliali4368

3 жыл бұрын

I watched this for my science class. -Julia

@michaiswaranata7211

3 жыл бұрын

I watched the video

@laurieeh

3 жыл бұрын

i watched the video- laurie

@ceciliazhuo9186

3 жыл бұрын

I watched this video for my science class.

Thanks all this info has got to get an A on my project. THANK YOU

Thank u so much, its really helpful. this is my first comment on youtube.

@th4n4t0s25 Thanks! I try hard to make it clear.

excellent video helped me alot thanks

My guess is that prior to touching it with your finger, the positively charged glass would attract electrons up to the plate just as you point out, but not enough to match the positive charge of the glass. So the terminal is still positive with respect to your body and so more electrons are attracted from your finger to the terminal.

@arnoldaszlt Oh no! The foils are spread apart and I can't reach inside the jar to press them together again! ;D

this was so helpful thank you

thanks for this! great explaination

Omg tyyy, I understand this concept a bit better now ever since I watched this video

@gary434

4 жыл бұрын

wow I didn't realize this video is 10 years old

@RimstarOrg

4 жыл бұрын

I'm glad it helped you, thanks. And even though the video is 10 years old, I'm still checking comments.

@Akama3 Yay! I'm happy to hear that. If you guys and gals have suggestions for other videos like this, I'd like to hear them.

this helped so much thanks XD

Thanks for explanation 👍😊

Assuming I'm understanding what you're saying correctly... The electroscope is _not_ charged before you do anything. When the charged object is brought near, the number of positive charges is still equal to the negative charges but they are no distributed evenly, so the leafs are charged and the terminal is charged. When you touch with your finger you either removed negative charges or add them, and at that point the electroscope is charged.

Thank you so much this helped me alot!

You're welcome. I hope it does to, though the main thing is that you've learned something.

i needed this thanks you and my teacher my teacher would say its gonna be hard so he also told us you can watch this video for help understanding

Great video! I usually have trouble with physics

Excellent!

@AGuyWhoMakesVideos That's sort of a strange question. My guess is somewhere in your course material or lecture 3 specific things were listed, so my answer may be different. But here goes anyway: to detect a net charge on an object, to measure the relative magnitude of charge on different objects, and to determine the sign of the net charge on an object (using techniques like in this video.)

@archiemedez18 You're very welcome. It is a tricky one to explain clearly but as long as you understand it you should do well. Feel free to ask here for help if you run into trouble.

Aye niggah! THANKS! yu da best nigguh in the hood maan!

I am forced to watched this for my science class

@celestialfaitth

3 жыл бұрын

true, forced HAHHAHAHAH

@Sindyrocks2009 I don't think I can help in the small space given for comments here. I sent you a friend request so I can send you a longer explanation in a message. If that's not okay then I can try in the comments but it will be a mess and may end up confusing you more.

I think you meant the Wimshurst machine. The Van de Graaff is the one with the big metal dome. But yeah, the Wimshurst's process starts with inductive charging of the disks sectors as you say.

@omgmgthorselova4eva and I'm glad I could help!

It won't hold the charge forever, but mine stay repelled for 30 seconds at least. If you think it's too quick then your jar may be a little conductive inside. Try a plastic jar instead or maybe give it a good cleaning with hot water and soap. It could also be your jar has too small a diameter. Don't touch the jar when you do this test.

You can rub a plastic soda bottle (a coke bottle for example) against your hair or a rubber balloon against your hair and then use the bottle or balloon. Make sure your hair is clean and that the air in the room isn't too damp. Oh, you can also move a plastic comb through your hair a few times and use the comb.