Ohm's LAw
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CurrentMoving electrical charges are called current. You can use ohm's law to find this or just an ammeter. The units are called amperes.
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VoltageThis is the amount of potential energy (energy at rest) between two points in a circuit. Again you can use ohm's law. The units are called volts
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ResistanceThe opposition to the flow of charge is called Resistance. You can use Ohm's law to figure this one out. The units are Ohms.
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Ohm's law
This law allows us to find the resistance, voltage and current when 2 of the factors are given. This does not really cause a fire but can help you stop one with the knowledge you gained with knowing resistance, voltage and last but not least current.