Electrostatics

The electric field generated by a point charge is given by the equation E = kq/r^2, where k is the Coulomb's constant (8.99 x 10^9 Nm^2/C^2), q is the charge, and r is the distance from the charge. Plugging in the values (q = 0.35 C and r = 0.30 m), we get E = (8.99 x 10^9 Nm^2/C^2)(0.35 C)/(0.30 m)^2 = 3500 N/C. Thus, the magnitude of the electric field is 3500 N/C.

When the charged rod touches the dry cork dust, it induces a charge separation within the dust particles. This causes the dust particles to become polarized, with one side becoming positively charged and the other negatively charged. The attraction between the charged rod and the polarized dust particles causes them to jump away violently as they try to align themselves with the electric field created by the rod.

The ratio of gravitational force to electrostatic force between two electrons is approximately (3.6 \times 10^{-42}). This is because the gravitational force between two electrons is much weaker than the electrostatic force due to their small masses compared to their charges.

Lightning is a Natural phenomenon which shows Static electricity.

Xerox machine works on the principles of static electricity , Electrostatic precipitators control solid pollution from a smoke works on this electrostatic principles , Some spray coatings and powder coatings are also working on the same principles

Static electricity is negatively safe meaning yes and no . if u rub a balloon on your hair that is static elect. it will stay there that is safe.

Well it's very rare for static electricity to get particularly large in every day life, so for the most part it is safe.

But it also causes lightening, so in some cases, not so safe.

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Static electricity can damage a computer so in that sense it is unsafe for electronic equipment.

As long as the voltage between the ends of the circuit remains constant,

the current through the circuit is inversely proportional to the total effective

resistance of the circuit.

as the distance is increased statically induced charge in the uncharged object reduced to a minimum.

Thus coulombic force which is directly proportional to the product of the charges tends to 0.

Electrical current is the flow of electrons.

"Static electricity" is more accurately called "static charge". It refers to the build up of a surplus of free electrons on a body (negative charge) , or the withdrawl of free electrons (positive charge). As the word "static" means, these charges are not moving, but are held stationary on the body.

The measure of charge is the coulomb, which is 1.24 x 1018 electrons.

If a charge is moving along a conductor, always from negative to positive, this flow of electrons is referred to as "current". The basic unit of current, is the amp. 1 amp is charge flowing at the rate of 1 coulomb per second.

Because electrons will be transferred from the cloth to the insulating rod. But the charge will be negative.

Zero. No current is flowing in an open circuit. The ammeter will display an amount of 0 amps because there is no longer any current once the circuit has been broken. An ammeter measures current.

Since there is charge separation in a polar covalent bond, there is also resultant electric field from partial positive charge to partial negative charge.hence due to electric field in one direction and also magnitude of equal and opposite charge.....it is a vector.

The portion of the pharynx that receives both air and food is called the oropharynx. This region is located behind the oral cavity and serves as a pathway for both food and air to pass through.

If the sphere is conducting, all the charge is distributed uniformly on the outer surface of the sphere.

Yes, stryfoam balls are better (they are lighter), but a piece of popcorn suspended on a good insulator (dry cotton is good, very thin fishing line may be better), and a well-charged object should cause the popcorn to move.

Here we have to think a little bit. When there is a point charge then the field at a given point at a distance r from the charge say q coulomb will be 9 x 10^9 q / r^2 V /m

But if the charge is distributed over a lengthy wire uniformly then the field at a given point could be found by integration technique or by applying Gauss law.

Hence the field due to a line charge of linear charge density K, the field at a point at distance r from the line will be 18 x 10^9 K / r.

To derive the above expression will be an interesting one which is to be enjoyed by knowing and doing so.

Really Mathematics is the queen of science.

Surface material can impact how far a toy car will roll. Smooth surfaces like hardwood floors or concrete allow for less friction and the car can roll farther. Rough surfaces like carpet or grass create more friction, slowing down the car and reducing the distance it can travel.

When the aeroplanes are charged after travelling in the air and contact with air particle the potential difference between it and the Earth is very high so electrons try to jump from the craft to the Earth to neutralize itself.

The mat acts as an insulator. If the mat was not there then the electricity flowing into you will go right into the ground, therefore having no effect to you. Since you are standing on the mat, less electricity goes through the ground, and the electricity gets trapped on you and your hair starts flying due to the repelling forces of same charges.

The electric field between two parallel plates is uniform and directed from the positive plate to the negative plate. The magnitude of the electric field is given by E = V/d, where V is the potential difference between the plates and d is the separation distance between the plates. This uniform electric field is established due to the charge distribution on the plates.

A wrist strap is a device worn on a person's wrist that is connected to a grounding point. It helps to prevent static charges from building up on the body by providing a path for the charge to flow to ground. This can help protect sensitive electronics from damage caused by electrostatic discharge.

Static electricity is a build up of electrons.

Static means still or stationary.

Electrons on metal can not be stationary as the metal is such a good conductor of electricity. To remove static electricity after dragging your feet on a nylon carpet just touch a metal appliance or pipe eg a tap.

Wood is generally porous so electrons again do not build up but ebony will build a static charge as it is a very dense wood.

Electrons build up on plastic as it is a poor conductor. The electrons are static and a charge builds.

Static electricity is caused by electrons being knocked off or building up on objects that are not normally good conductors.

To calculate the time taken to do 432 joules of work with a power of 75 watts, you would use the formula: time = work / power. Plugging in the values gives you time = 432 Joules / 75 watts = 5.76 seconds.

Electric field lines represent the direction of the electric field at any point in space. If there were sudden breaks in the field lines, it would imply sudden changes in the electric field strength, which is not physically possible. The electric field must vary continuously and smoothly in space.