{"id":11376,"date":"2022-11-18T15:30:54","date_gmt":"2022-11-18T10:00:54","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=11376"},"modified":"2022-11-19T15:45:32","modified_gmt":"2022-11-19T10:15:32","slug":"power-rating-energy-consumption-various-electrical-appliances","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/power-rating-energy-consumption-various-electrical-appliances\/","title":{"rendered":"Power Rating and Energy Consumption of Various Electrical Appliances"},"content":{"rendered":"

What is the electrical energy?<\/strong><\/h2>\n
    \n
  1. Electrical energy<\/a> is important because this form of energy can be easily converted into other forms of energy such as heat<\/a>, light, mechanical and electromagnetic energy.<\/li>\n
  2. Electrical energy<\/strong> can be defined as the energy carried by electrical charges which can be transformed to other forms of energy by use of an electrical device or appliance.<\/li>\n
  3. The energy carried by electrical charges can be transformed to other forms of energy by using different electrical appliances. Table shows the transformation of energy for a few household appliances.
    \n\"electrical
    \n\"electrical<\/li>\n<\/ol>\n

    Power Rating and Energy Consumption of Various Electrical Appliances<\/strong><\/h2>\n
      \n
    1. Practically all household electrical appliances that work on the heating effect of current are marked with voltage and power ratings.<\/li>\n
    2. An electrical kettle which is marked 240V, 1500 W means that the electric kettle will consume 1500 J of electrical energy every 1 second if it is connected to a 240 V supply.<\/li>\n
    3. The amount of electrical energy consumed in a given time can be calculated by:
      \n\"energy<\/li>\n
    4. We can see that the energy consumption of any electrical appliance depends on the power rating and the usage time. The larger the power rating in the electrical appliance, the more energy is used every second. The longer the usage time, the more electrical energy is consumed.<\/li>\n
    5. Table shows the power rating and operating voltage of some household electrical appliances.
      \n\"Power<\/li>\n
    6. Appliances that have a heating effect such as electric ovens and electric kettles usually have a high power rating and consume more electricity.<\/li>\n
    7. The National Electricity Board (Tenaga Nasional Berhad) calculates the electricity bill according to the readings of the kilowatt-hour meter as shown in Figure.
      \n\"Power<\/li>\n
    8. The unit on the electricity bill for electrical energy used at home is kilowatt-hour or kWh.
      \n1 kilowatt-hour represents the amount of energy consumed in 1 hour by an electrical appliance at the rate of 1 kilowatt.
      \n1 kWh = 1 kW x 1 h
      \n= 1000 W x 3600 s
      \n= 3.6 x 106<\/sup>\u00a0J<\/li>\n<\/ol>\n

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