What is the difference between Watts, Amps and Volts?

We measure electricity by it by its effects on applications. An Amp (amphere), represents the amount of current in a circuit. Voltage, scientifically is the circuit’s “potential difference,” and this can be seen as the amount of “pressure” that drives electricity in circuits. Watts measure the use of electrical power, and 1 Watt is equal to 1 Volt, multiplied by 1 Amp. To understand this better let’s think if it like this… One commonly used analogy is that of the garden hose. The water pressure in the hose represents the voltage, and the amp value represents the volume of water flowing through the hose. The wattage, then, is the total amount of water that comes out of the hose, per unit of time.
So, using this analogy and think in terms of an electrical wire, it is simple to see how they relate. In an electrical circuit, the voltage may be 240v (as it is in most electrical outlets in the United Kindgom), and most appliances are set to run on this particular voltage, although each individual item will operate at different Amp levels, and therefore at a different Wattage.