# ELECTRICITY AND CURCITS

## ELECTRICITY

Electricity is a form of energy made from the existence of charged particles, such as electrons and protons.

## Atoms and Electrons

Atoms are somewhat related to electrons. Atoms are the basic building blocks of all matters. Atoms consist of electrons in it. Atoms consist of a neutron which contains a positive charge. Electrons are the negatively charged particles around an atom. Together, all of the electrons of an atom create a negative charge that balances the positive charge of the protons in the atomic nucleus.

## Types of Electricity

There are two types of electricity. Current and static electricity. Current electricity is the flow of an electric charge. It is often carried out by moving electrons through a wire. Static electricity is a stationary electric charge usually formed by friction. It causes sparks and crackling. An example of static electricity is when you rub a balloon on you hair.

## OHM'S LAW

Ohm's law works with the relationship between the voltage and the current in a conductor. The relationship shows that the difference between voltage and a conductor is proportional to the current through it.

## V (Voltage), I (Current) R (Resistence)

There are three factors in ohm's law.

Ohm's Law is given by:

V = I R
Voltage = Current (x) Resistance
The voltage, current and resistance all rely on each other. If one is changed the others will be affected. For example, if the voltage is increased the current will increase which may cause the conductor to explode if there is no resistance. This is because the electrons are moving too fast. If the resistance is increased the electrons will move at a slower rate.