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Electrostatics

Electrostatics is the branch of physics that deals with the study of charges at rest. A common electrostatic phenomena is plastic wrap sticking to your hand and itself when removed from the box. Everything to do with electrostatics goes in this category.

1,860 Questions

How much power is used by a blender that operates on 120 V and 2 A?

The power used by the blender can be calculated using the formula: Power (P) = Voltage (V) x Current (I). In this case, P = 120 V x 2 A = 240 watts. So, the blender uses 240 watts of power when operating.

Can static electricity be harnessed for useful purpose?

It seems if simple static electricity experiments
can sufficiently harness 'static electricity' to reveal visible effects, i.e. a charged comb makes hair stand up,
then the same effect should be applicable on a much larger scale.

Why? Because the hair is attracted to the 'charged comb,'it indicates a 'magnetic effect.'

Once the 'magnetic effect' is applied to a visible result, i.e. hair standing up, it means static electricity has been converted to magnetic power.

It seem to me, it should be possible to create this 'magnetic power' on a far larger scale by accessing the enormous static electricity that pervades the air around us.

So, if someone out there has ever produced magnetism by accessing 'static electricity' on a scale that would light up a light bulb, recharge a cell phone, or run a refrigerator, or even run a car, I'd really like to see it or hear about it?

When a balloon is rubbed with a wool cloth why does it become negatively charged?

When a balloon is rubbed with a wool cloth, electrons are transferred from the wool to the balloon, giving the balloon a surplus of electrons, making it negatively charged. Wool has a higher affinity for electrons compared to the balloon material, which results in the transfer of electrons and the creation of a negative charge on the balloon.

What kind of charge the electroscope can detect?

The sphere of an electroscope is always neutral at first. Let's say a negative ebonite rod is brought close but not touching the sphere. (The entire electroscope is neutral). The electrons in the electroscope will want to repell the electrons in the rod so the electrons in the electroscope move down into the 2 leaves and then repell because there is a high concentration of negatives. When the ebonite rod is removed, the leaves go back to their straight position. The electroscope is always neutral but only a charge distibution occured. The number of protons and electrons remain the same. However if a charged rod touches the sphere then the electroscope will be charged because it a conductor and the charge from the rod transfers to the electroscope because the rod's caharges want to attarct to the electroscope's opposite charges. This is called charging by contact.

Is electrostatic force a vector quantity?

Yes. Every force is a vector, requiring both a magnitude and direction to completely describe it.

What are three ways static charge can be built up?

Static charge can be built up through friction between two objects, by induction where a charged object is brought near a neutral object causing the charges to separate, or by contact where a charged object transfers electrons to a neutral object when they come in contact.

What would happen if someone touched a Tesla Coil while it was on?

what would happen if some one touched a Tesla coil while it was on??? it depends on lots of factors ...is the person in good health ....it is humid out are you sweting is the coil hooked up to a 120volt or 220 volt line is it on hi .....Tesla coils make Static Electricity (lighting) and a lower Amprage ....Amps are what kills people not volts volts burn ....but if the volts are high enough the electricity runs on the outside of your body through your skin and swet (well the salt in your swet) and is harmless but if you tauch the coil and a ground (ie) pipe,chimminey,wire,something electronic ...it could be fatal read any instruction that came with your kit coil or your coil package ....if you made your ciol froma set of internet plans BE CAREFULL depending on how good you are at reading and fallowing the instrutions it could be a matter of life and death ....if you tauch the coil with a florecent tube it will light up and there is other things to play with such as a clear light build (any wattage) or a neon build just be carefull till you get a feel for it...and allways have some one there incase something does go wrong....play safe

What happens when particles with like charges come near each other?

Particles with like charges repel each other due to the electrostatic force. The closer they get, the stronger the repulsion force becomes. This repulsion force prevents the particles from coming into direct contact with each other.

Working models on conservation of energy?

Some common working models on conservation of energy include the law of conservation of energy, which states that energy cannot be created or destroyed, only transferred or transformed. Other models include mechanical energy conservation, where the total mechanical energy of a system remains constant if only conservative forces are acting on it, and the principle of energy conservation in thermodynamics, which states that energy can change forms but the total energy in a closed system remains constant.

What is alumina used for?

Lumina is one of several forms of aluminum oxide, Al2O3, occurring naturally as corundum, in a hydrated form in bauxite, and with various impurities as ruby, sapphire, and emery, used in aluminum production and in abrasives, refractories, ceramics, and electrical insulation. Also called aluminum oxide.

Is the electric intensity at any two points in a uniform electric field equal?

Yes, in a uniform electric field, the electric intensity is the same at any two points. This is because the electric field strength is constant in magnitude and direction throughout the entire region of the field.

What happens to the leaves of an electroscope that is not charged?

If an electroscope is not charged, its leaves will remain in a neutral position, hanging straight down. This is because there is no excess charge to cause the leaves to repel each other and spread apart.

Explain how electrons are pushed through a conductor without having to touch other electrons?

When a voltage is applied across a conductor, it creates an electric field that exerts a force on the electrons, causing them to move. The electrons repel each other due to their negative charges, so when one electron moves, it pushes others along in a chain reaction. This process allows electrons to flow through the conductor without directly touching each other.

Static electricity is electricity at rest. true of false?

The statement is not correct. Electricity is generated by the movement of the charges. So if the charges are static, i.e if they do not change their position then how electricity/current will be produced.

Permeability of a nonmagnetic medium is..?

Permeability of a nonmagnetic medium is defined as being equal to the permeability of a vacuum, which is approximately 4π x 10^-7 H/m. This means that nonmagnetic materials do not enhance or diminish the magnetic field passing through them.

A charged particle moving with a constant velocity enters a magnetic field?

when a charged particle is moving with some velocity it produces some magnetic field.

If we place that charged particle in presence of external magnetic field it gets affected by that external field.

Why does static electricity not last?

because as soon as you touch the groud all the extra electrons causing the charge go into the ground. This menas that the chrge disapears, as does the effect. However, if you stay insulated from the ground the effects last much longer.

What are some similarities between electricity and magnetism?

Compare:

- Electricity and magnetism are both described mathematically as vector fields.

- The force attributed to both, the Lorentz force, only affects charged particles.

- A moving electric field is equivalent to a magnetic field.

Contrast:

- Magnetic field lines "loop" around their poles, electric field lines start at a point charge and continue on indefinitely.

- All materials feel a magnetic field through the effect of diamagnetism. Only charged particles feel an electric field.

- There is such a thing as a point charge, but there is no such thing as a magnetic monopole.

What is the specific resistance of silver?

The specific resistance of silver is approximately 1.59 x 10^-8 ohm-meters at 20°C. Silver is known for being one of the most conductive metals, making it a valuable material for electrical applications.

A static discharge differs form an electric current in that a static discharge?

A static discharge is a sudden flow of electricity between two objects with different electric potential, whereas an electric current is a continuous flow of electric charge in a closed circuit. Static discharge occurs due to a build-up of static electricity, while electric current flows due to an applied voltage.

What type of current is used in homes?

Both ac and dc current are used in our homes. But only low frequency (50 or 60 Hz) ac current is furnished by the power company. Electrical devices in our homes that require dc current usually have built in ac to dc rectifiers. we get electricity into home from main power supply as AC current.according to our electrinic devices select what type of current is suitable for it.for example,Ac power supply used to Tetevision,computers etc.Inside the devices,AC current convert into DC current.

Which describes static electricity?

Static electricity is a buildup of electric charge on the surface of an object due to friction with another object. This charge remains in place until it is discharged, often causing objects to repel or attract each other. Examples include socks sticking to clothes in the dryer or hair standing on end after rubbing a balloon on it.

1 watt of power equals how many joules?

1 watt is equal to 1 joule per second. This means that 1 watt of power equals 1 joule of energy expended over a period of 1 second.

What distinguish electric field intensity from electric potential stating the unit of each?

Electric Field Intensity also simply referred to as the Electric Field is a vector quantity with the units (V/m) (Volts per meter) Symbol: E (Boldface to represent a vector)

Electric Potential is a scalar quantity with units V (Volts). Also sometimes referred to as Voltage when dealing with the difference between two points. Symbol: V (non-bolded to represent a scalar)

The relationship between the two is:

The Electric Field Intensity E is equal to the negative of the gradient of V.