Power means rate of work done.Even the unit watt is equal with joules/s. Here the hair dryer is rated 800 W means it required 800 J energy every second. Therefore we will calculate how much energy required in 3 min. The formula is {eq}\boxed{E=Pt} {/eq}....
However, older or malfunctioning appliances may consume more than their rated power wattage.Additionally, many devices continue to consume electricity even when they’re not in active use, particularly electronics that have a standby mode, like televisions and computers....
So the stored electricity can be used to power cars at night or on cloudy days. Did you know that solar energy is not as expensive as it used to be? In fact, in the last few years, solar panels have become much more affordable for people to use. Since the sun gives off more ...
Dryer: 1,500 to 5,000 watts Miscellaneous There are plenty of other devices and appliances around your home that use electricity. Here are a few more that could impact your overall usage: Computer: 30 to 70 watts Phone charger: 5 watts Wi-fi: 5 to 20 watts Hair dryer: 1,500 to 2,...
An electric bulb is marked 250 V - 200 V. What information do markings convey? How many joules of energy are consumed by the bulb in one hour? How long will it take for the bulb to consume one-kilowat How long does it take to do 432 joules of work with 75 ...
Compared to a dual hose system, these tend to consume less energy. In contrast, dual-hose portable air conditioners use one hose to bring in fresh air from outside and then circulate cool air in your space. Excess moisture and warm air are pulled through the unit and expelled using the...