This is a picture of an outlet, this is where electricity is drawn from.
Typically a regular wall plug like this disperses 120 volts of electricity.
According to the dictionary, electricity is a form of energy resulting from the exsistance of charged particles. Electricity can be measured in watts. Electricity is considered a secondary energy source because it is made of many primary sources.
Why is electricity important?
Electricity is very important today for many reasons. The first and most broad reason is because it powers almost everything that we humans use in everyday life. Electricity, so to speak, makes our world go round. It powers almost everything from a phone to an entire household. Electricity is important because humans have found a way to use it so that it may save lives. A heart defibrillator is an electric box that basically shocks your heart and can bring a person back to life. Electricity helps many of us live life. It powers our lights, TV's, phones, stoves, and many other things that are necessary in our lifestyles here in the 21st century. Without electricity the world would just not be the same.
What is electric current?
Electric current is the flow of electric charge. Typically electric current is a flow of electrons through a wire. There are different ways to calculate current in a circuit. The first way is to use the equation I=Q/T. I stands for current, Q stands for the charge, and T stands for the time. Another equation used to calculate current in a circuit would be a part of ohm's law which I will later talk about in a different post. Current is measured in amperes, or otherwise shortened and known as amps.
What is resistance?
Resistance is the delay of movement of a charge in a circuit. Resistance is directly related to the length of a wire in a circuit and the number of collisions. Resistance also has an inverse relationship to the cross sectional area of a wire, which is basically how thick that wire is. It makes sense the the more area electricity has to flow the lower the resistance. Resistance is measured in ohms, and to calculate resistance we use Ohm's law, V=IR. V stands for volts, I stands for current, and R stands for resistance. This equation is very useful in trying to find multiple values.
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