Static electricity Definition and 124 Threads

Hey guys, I have a physics exam tomorrow. I found a question that I can't solve. Rubbing a polythene rod with a cloth makes the polythene negatively charged but rubbing a brass rod in this way will not charge it. Why can't the brass rod be charged this way? Thanks

First of all, I know nothing about physics, so if I use the wrong term, or something don't get me too hard of a time :smile: But this problem has been really bugging me these past few weeks. For some reason, my jacket seems to give me a huge amount of static electricity. Almost every time I...

Hi. not being expert in this field, I have a question about static electricity. I have seen balloons stuck to hair by rubbing them. If I wanted to create a (pocket held) electronic devise to create that charge on the body, so a balloon can be attached without rubbing, how would it be done. And...

1. Name three methods that could be used to charge an object. Friction, induction, and conduction, I assume... 2. A negatively charged rubber rod is momentarily touched to the knob of a neutral electroscope and then removed. A) What is the charge on the knob? Negative B) What is the...

[SOLVED] Physics 30 - Static Electricity Imagine that you have an object with an unknown electrostatic charge. If you are given a rubber rod, fur, and a neutral electroscope, describe how you could find the type of charge on the object. My answer: By rubbing the rod on the fur, the fur will...

You rub your feet on the carpet in your warm living room on a cold winter day. You know you have gained static electrical charge on your body. You decide to touch your sister to shock her. Your sister knows that in order to reduce the electrical shock she will feel when you touch her, she...

You rub your feet on the carpet in your warm living room on a cold winter day. You know you have gained static electrical charge on your body. You decide to touch your sister to shock her. Your sister knows that in order to reduce the electrical shock she will feel when you touch her, she...

Homework Statement Initially electron moves through a horizontal electric field that accelerates electron. Then electron enters a uniform electric field between two parallel plates. velocity of the electron is horizontal and it lies exactly on the middle line between the plates. This field...

So, I'm in first year university physics and each week we have online quizzes. And I'm having trouble figuring out how I got this question wrong. Q: In what amount of nitrogen gas are 0.8 MCb of negative charge? Note: each nitrogen atom has 7 electrons. The answer they gave is 5.92 x...

Homework Statement When I rub an object against another object, will the electron transfer always be fixed? As in, the object from which the electrons flow will always be the same object or will the objects swap roles? Why? Homework Equations No equations required for answering this...

Homework Statement If a ping-pong ball has a charge of 3.2x10-5C, how many too many or to few electrons does it have Homework Equations # of electrons=charge/fundamental charge The Attempt at a Solution 3.2X10-5C/1.6X10-19= 2.0X1014 What do i do now, and i do not get what it...

At the small gym I am working at there are about 12 treadmills. On some of them if you run for a few minutes and then touch the body of the treadmill you get a static electricity shocks. The machines are all properly grounded. At first, I thought the problem was that the body of the machine...

please forgive a not very scientific question, i am wondered if static electricity can penetrate a faraday cage, this has to do with ball lightning being seen in an aircraft.

hey all, i'm new to the forum...just finished up the momentum and energy unit and now were on to static electricity...i was hopin i could get a bit of help with a couple questions i have: 3. A negatively charged rubber rod is momentarily touched to the knob of a neutral electroscope and then...

hey all, i'm new to the forum...just finished up the momentum and energy unit and now were on to static electricity...i was hopin i could get a bit of help with a couple questions i have: 3. A negatively charged rubber rod is momentarily touched to the knob of a neutral electroscope and then...

Many times I have gone to the park, stuck my kid on the slide watched her slide down, hair sticking straight up, only to laugh at her and her to give me the "slide shock" as I give her a hand off the slide. Today however she asked me "why does the slide make my hair stick up", something in all...

The figure below shows an electrostatic method of separating conducting and non-conducting spheres Why do the conducting spheres fall off from the roller while the non-conducting spheres have to be scrapped off? Thanks for the help. Cheers, Winston

When I comb my hair a few hair stick up some times due to static electricity. I was wondering if I used a comb made of some highly conductive metal like copper, would I not get the static electricity in my hair? When I comb my hair with the plastic brush, isn't the reason that my hair gets...

so i was reading about QED, and it said that when 2 charged particles repelled each other, it was because of virtual photons. is it true then that static electricity is caused by virtual photons, or is it an entirely different force all toghether?

Tomorrow I have to do a demo in physics regarding static electricity. I am going to rub a comb against the inside of my sweatshirt and then attract tissue paper to it. I don't understand how to explain why this happens. Is the comb neutral at first, then when you rub it to the sweatshirt it...

Hello all. I have a couple of questions concerning static electricity, magnets, and dissimilar materials. My first question is can a permanent magnet moved past a dissimilar material be used to give it a static charge as if the magnet were a dissimilar material of opposite charge? My second...

Hello, I am working on a project involving static electricity. I am trying to build a motor type device that can accumulate a static charge through two disks made of dissimilar materials (I’m still working out which two materials would be best) spinning past each other in close proximity. I’m...

I have come up with the following definition of static electricity , which I hope is acceptable to all , if not I would be only too glad to hear any opinions. “Static electricity may be defined as the forces of attraction or repulsion felt between an imbalance of charges on isolated...

The distinctions which are thought to exist between static electricity and current electricity are unfounded and , if subjected to a rational examination , patently absurd. Static electricity maybe described as an unequal distribution of charge (either excess positive or negative charge ) on a...