Electrostatics

In the US, it's unlikely you would be "charged" with a crime.

Instead, foods are confiscated at borders and destroyed. This prevents certain insects and bacteria from crossing the border into the US food chain. This would include plants that are not indigenous to the US (including Hawaii and Alaska) because many can choke out native plants. They would confiscate live fish and animals for the same reasons. Birds are permitted, I believe, but only if declared an health certificate submitted.

Goods are a different thing. You would be made to pay customs, and likely a stiff fine for lying on the declarations form. There could be some goods they confiscate outright.

*The same things happen whether coming on foot, by vehicle, or airplane.

A voltage is not something that "surges through" a completed circuit. Voltage is a potential difference that is applied across a device or circuit. Thus, it would be more correct to say "1 ampere of electricity surged through the victim's body". Although

this current would have disastrous results on the human body, it doesn't sound that exciting to people who have never studied physics. Perhaps the newspapers get it wrong out of ignorance - or perhaps they 'choose' to get it wrong for other reasons.

Sensationalism has long been a part of US media. The statement makes its impression because of the large number, coupled with the familiarity of most people with "high voltages" as dangerous.

Source:jca.umbc.edu

Electric field intensity is related to electric potential by the equation E = -dV/dx, where E is the electric field intensity, V is the electric potential, and x is the distance in the direction of the field. Essentially, the electric field points in the direction of decreasing potential, and the magnitude of the field is related to the rate at which the potential changes.

When you walk on a wool carpet, you acquire excess electrons (negative charge) due to friction. When you touch a metal doorknob, these excess electrons can rapidly flow from your body to the metal, causing a static discharge. Metal is a good conductor of electricity, so it easily allows the excess charge to transfer, resulting in the shock you feel.

Current flowing through any conductor encounters resistance in that conductor. This resistance produces heat. (Think of tires on a car after driving on the highway. Smooth trip, but a small amount of friction (resistance) is inevitable.

A balloon that has a static electric charge can stick to a wall because opposite charges attract each other. The balloon carries a negative charge, while the wall carries a positive charge (due to electrons being transferred from the wall to the balloon). This attraction between the opposite charges causes the balloon to stick to the wall.

When you get zapped by static electricity, it means that there is an imbalance of electric charge on your body or on the object you touch. This causes a sudden flow of electrons to even out the charge, resulting in a small but quick electric shock or spark.

Electricity and magnetism combine to create sound in a conventional speaker in a fairly simple way. The basis of this energy conversion isn't that difficult to understand. And yes, it is energy conversion - the conversion of electrical energy (the signal) to mechanical energy (the sound). And if you guessed that a microphone does the opposite conversion, you'd be correct. Let's break down the speaker a bit, but we need to do just a bit of review along the way. Electricity creates a magnetic field around its path of travel. Always. If we take some wire and roll a coil and pass electricity through it, it will create a magnetic field around the coil. (This is the basis for the electromagnetic.) If the electricity we pass through the coil is changing, then the magnetic field it generates will change. (The electromagnet uses direct current.) The changing field will cause the magnetic field around the coil to change. Hang onto that thought and lets look at one more thing. If we take our little coil of wire and attach it to a fairly rigid conically shaped piece of material, we'll have a speaker cone. We'll attach the outer edges of our cone to what is called a "surround" which is flexible. Then we'll attach our surround to a rigid frame. One more thing here. Remember our coil? The one on the cone? We're going to "hang" the cone so that a permanent is inside the coil. Remember that the cone and coil are one piece, and they can move out and in because the flexible surround allows that. And in the "neutral" position where the cone hangs with no signal, there is that permanent magnet (which is fixed to the back of the rigid frame that supports the cone) inside the coil. Got all that? We're set. If we apply a changing electrical signal to the coil, it sets up a changing magnetic field around the coil. This changing magnetic field interacts with the magnetic field of the permanent magnet. The interaction will create a force which will move the coil and cone assembly. It will move the assembly out and in according to the electrical signal. And as the cone moves out and in, it creates a sound wave. The speed at which the cone moves out and in will set the frequency of the sound (the pitch), and the amount the cone moves out and in on each cycle of the signal will set the amplitude of the sound (the volume). That's it! Really!

Paint spraying cars: the paint particles are given a negative charge, and the car frame is given a positive charge, so the paint sprays out, and sicks to the car, and is attracted to all the hard- to reach areas

Electrosatic precipitator; in coal fired power station theses are used to stop the dust particles reaching the atmosphere. Particles of ass pass through a charged grid, and becone charged. They then stick to plated either side of this grid, where they can be disposed of safely

Photocopier; A charged drum is in the photocopier. Light is then shone through the paper, and whete ther is no print light hits the drum and it looses its charge. This leaves charge where there needs to be ink. Ink is the pulled onto the charged drum, and transfered onto paper

Antistatic floors; to avoid static charges in hospital, the floors are made out of an antistatic material, so no charge can build up.

yes there is electrostatistics in a printer just the same way as vandigraph machine which is like a=n electrical thing when you touch your hair stands on end, if i say it like that maybe you will understand a vandigraph machine....hope that helpped

Piezoelectric discharge (some butane lighters)

This is just a charge that accumulates on something that is isolated from ground. Under some circumstances a charge may build up on your body and then you touch something that is grounded and you get a shock. This is the static electricity flowing to ground.

one But if you going to sit there with a multimeter to see what one or 1000 will be for a shock to your system, i recommend you build another project.

Yes. The electrons, which are negatively charged, are pushed away from the negative terminal, which has excess electrons, and they and flow to the positive terminal where there are less electrons.

No. During a heavy downpour, he is almost certain to get water inside his voltmeter

and ruin it. At the same time, the rungs on his ladder are likely to become wet and

slippery, posing a physical hazard if he attempts to ascend or descend the ladder.

Finally, his clothing is certain to become soggy and cold, leading to a severe bout

of the ague.

If you touch the charged item to the ground, the charge will go into the ground. This is because static electricity is caused by either having too many or not enough elecrons. When toughed to the ground, the item will either get rid of the electrons or pick more up, making it neutral.

3000 Volts or more. This comes directly from the A++ Hardware book.

From ESD Association ESD Handbook ESD TR20.20 section 5.3.2.1:

"When people are charged with static electricity, they can release stored energy to conductive objects such as doorknobs and electronic circuits. This transfer of energy is called an electrostatic discharge. Sometimes the electrostatic discharge causes visible sparks, but more often, it is both unseen and unfelt. Electrostatic discharges can damage ESD sensitive components used in modern electronics.

Static electricity is a natural phenomenon that occurs in all climates and at all levels of relative humidity year round. Most people cannot feel an electrostatic discharge unless the static voltage is greater than 2000 volts. However, some electronic circuitry can be damaged by ESD that is less than 2000 volts. The damage can be done without people having any sensation of the ESD event.

When a wrist strap is worn properly and connected to ground, the person wearing it will stay near ground potential."

The best way to lower calcium hardness in the pool water is to drain the water and refill with water of lower calcium hardness. Have the calcium hardness tested for both the pool water and fill water. Ideal range is 175-300ppm. There are 'calcium reducer' products available through pool stores, but not sure how effective or economical they are.

athletics: the hammer throw, shot put, discus

all three need strength and you improve on them the more and more you train.

Also in the Olympics: weight lifting, you need a lot of strength and the more you practice the better you get.

Hope i answered you question for you.

When a balloon's charges are balanced, it means the electrons and protons are equal, resulting in a neutral charge. This means that the balloon will not be attracted or repelled by other charged objects, and it will not exhibit any static electricity effects like sticking to walls or attracting small objects.

Rubbing a balloon on your hair transfers electrons from your hair to the balloon, creating a build-up of static electricity. The rubber balloon's insulating material helps to trap the charge, leading to the balloon becoming charged.

Electric fields point outward from positive charges and inward toward negative charges. This direction represents the direction of the force that a positive test charge placed in the field would experience.

When you rub shoes on a wool carpet, friction between the two surfaces causes electrons to transfer from one material to the other. This results in one material becoming positively charged (shoes) and the other becoming negatively charged (wool carpet). The ribbing on the shoes increases the surface area in contact with the carpet, facilitating more electron transfer and creating a buildup of electrostatic charge.

When a glass rod is rubbed with fur, the glass rod becomes positively charged and the fur becomes negatively charged. This is due to the transfer of electrons from the fur to the glass rod, creating a static electricity charge imbalance between the two materials.