![]() This is read as Resistance = Voltage divided by Current. Resistance is measured in Ohm’s using the formula R = V/I. Ohm’s Law uses these 3 mathematical equations to demonstrate the relationship between electric voltage, current, and resistance. Watts, amps, and voltage all culminate into Ohm’s, a measure of resistance. Voltage is equal to current times resistance. This is one of the trouble spots that can cause electric fireplaces to fail. Voltage is important because an overload (sending too much power through an undersized wire) can lead to blown fuses and tripped fuse panels. Simply put, voltage tells you how much force is being exerted relevant to the wire.Ī voltage meter or voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Similarly, the voltage of an electrical wire is determined by factors such as the size of the wire (gauge) and resistance (covered in the next section). Twist the faucet open and you have a stream of water that creates pressure inside the hose. Imagine a 1 inch hose with a little bit of water flowing through it. Using our garden hose analogy, the voltage of electricity is akin to the pressure in a garden hose. This can be read, “current is equal to voltage divided by resistance.” Volts Referring back to the garden hose analogy, amperage would be akin to the number of gallons of water was pumped through the water spout.Ĭurrent is abbreviated with the letter “I” not to be confused with “L.” Current is calculated using the formula created by Ohm’s Law: I = V/r. Amps measure the amount of electricity being used. Current is measured in amperage or “amps” for short. For the mathematicians out there: P = V x I AmpsĬurrent is a quantity that measures the volume of electrical flow between two points and is measured using amperage. Power is equivalent to voltage times current. Watts are a measurement of electrical power (P). You’ll often see this reading on stereo systems, fans, microwaves, and just about anything that uses electricity. This action propagates the substance at higher rates.Īn increase in power is attributed to an increase in wattage. You didn’t increase the amount of water flowing through the hose so why then, would the water flow at a higher rate and have a higher force? Since you reduced the size of the hole (gauge of the electrical wire), you increased the pressure (or voltage). An easy way to understand wattage is by plugging your finger into the end of a garden hose.
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