How Do You Calculate Power In Watts?
Do you have an appliance you want to calculate the amount of power for? Are you studying power equations in school? The equations for calculating power are very useful because so much can be done with them. The level of math required to solve these equations is relatively low, which means they can be done with or without a calculator. This tutorial is important for anyone who wants to know the equations to calculate power. Using a calculator, determine the amount of energy (Joules) and time (Seconds) you wish to calculate power (Watts) by. Divide energy into time and you will get the rate of power (Watts) that is used.For example: .05(J) / 20(S)=.0025(mW) Use milliwatts because the amount of power used in most electronics is relatively low. Determine the amount of current (Amps) and voltage (Volts) you wish to calculate power by. Multiply the number of amps and volts together. The product will give you the amount of power. For example: 001(mA) x 5(V)= .005(mW) Look at Ohm’s Law: V=IxR
