11.1 Electrical Power & Energy
{"Image DocumentName": "11.1 Electrical Power & Energy", "Image ImageDescription": "Recall in Section 5.5 that power (P) is the rate at which energy is transformed. Electrical power (P) is the rate at which electrical energy is produced, or consumed, in a given time, expressed in Watts (W). Electrical energy is measured in units of kilowatt hours (kWh) because the joule (J) is too small to be a convenient measurement. 1 kWh = 3.6 x 106 J. A typical home in Ontario uses 1000 kWh of electrical energy each month. When describing the electrical energy generated at a power plant, it is measured in megawatt hours (MWh). 1 MWh = 3.6 x 109 J; 1 MWh = 1000 kWh.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}