​Let's go to a sandbox!

Wire Corona

Occurring on powerlines, these bright lights called Wire Corona may be caused by static buildup on nearby towers and lines and may provide an explanation for the number of “UFO” sightings in these areas.


Corona discharge can cause an audible hissing or cracking noise as it ionizes the air around the conductors. This is common in high-voltage electric power transmission lines. The corona effect can also produce a violet glow, the production of ozone gas around the conductor, radio interference, and electrical power loss.

https://www.electrical4u.com/corona-effect-in-power-system/#google_vignette

A form of energy that results from charged particles. Like poles on a magnet, charged particles cause attraction and repulsion. The forces caused by electricity are primarily the result of charged particles called electrons.

Electricity

​positive and negative

​Usually, an atom has equal numbers of protons and electrons, so the overall charge of the atom remains neutral, or zero. However, sometimes electrons transfer to other atoms, causing the charge to change.



the atom that loses electrons becomes positively charged; and

the atom that gains electrons becomes negatively charged.

​Electrical Force

An electrical force is the attraction or repulsion between charged objects. Like magnetism, electricity can affect objects that do not touch each other. An electrical force can be:

• attractive

• repulsive

Whether electricity creates attraction or repulsion depends on the charges present. The phrase opposites attract applies to electric charges.

Play Video in Edio on Slide 4

Electric Fields

An electric field is the area of electrical force around a charged particle. You can draw a model of an electric field using field lines. The direction of the arrows on the field lines depends on the type of charge.