Changes

===Equation===

Where:

'' '''Power''' = ''<math>\frac{Work Done}{Time}</math>

Where:

'' '''Power''' = ([[Electrical Current|Current]]) x ([[Potential Difference]])

Where:

| style="height:20px; width:200px; text-align:center;" |An electrical fan is plugged into a [[Electrical Socket|socket]] supplying 230V. An [[ammeter]] reading shows that the [[Electrical Current|current]] going into the fan is 0.20amps. Calculate the power of the fan correct to two [[Significant Figures|significant figures]].

| style="height:20px; width:200px; text-align:center;" |A light bulb is supplied a current of 625mA. The [[Potential Difference|potential difference]] across the terminals on the [[Electrical Bulb|light bulb]] is 96 [[volt]]s. Calculate the [[power]] of the [[Electrical Bulb|bulb]] correct to two [[Significant Figures|significant figures]].

|-

| style="height:20px; width:200px; text-align:left;" |'''1. State the known quantities'''

<math>P \approx 2100W</math>

|}