Joules To Volts. Enter energy in joules:. Enter charge in coulombs:. Voltage result in volts:. Volts V One V is defined as the difference in electric potential between 2 points of wire once an electrical current of 1 ampere dissipates one watt of power between those points. Joules to Volts calculator It is a simple online calculator.
For more details, check out the video at the end. The two circuits in Figure 2 explain this. The low voltage bulb has a current of 1 A flowing through it, it runs on 5 V and gives out energy as heat and light. However the mains bulb runs on V and also has a current of 1 A flowing through it. It gives out a lot more energy and so is much brighter. The amount of electricity passing through each bulb per second the current is the same, but the electric charges passing through one bulb have more energy than those passing through the other one.
In other words if the potential difference between two points is 12 V then every coulomb of electricity passing from one point to the other loses 12 J of energy.
If we think about the input of energy, then a V supply will give each coulomb J of energy while a 5 V supply only gives each coulomb 5 J. Volts, amps and joules The voltmeter As you have seen, voltage is a measure of electrical energy; its proper name is potential difference.
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