How to measure electricity when using fan.?
Question:in using a fan,how is the elctricity measured?my mum insisted that it depends on the speed but i thought it depends on the lenght of time used. one side say the higher the speed of the fan,the more we have to pay. another say that the longer the fan is used,the more we have to pay.so ehich is right? i have to convince my mum if i'm right.
Answers:
It is both the speed and the length of time used. The speed will affect the amount of power (kilowatts is the unit of measure for electricity). The higher the speed of the fan, the higher the power required. You are most likely billed on the energy consumed which is the power multiplied by the length of time (kilowatt-hours for electricity).
So the higher the speed, the higher the power required. Then for any given speed, the longer it is used the higher the energy required. Setting the fan at its slowest speed and running it for long enough will use the same energy as running the fan at its highest speed but for a shorter time.
I don't know about your area but around where I live, you can get a meter from the local library that will measure exactly how much a given appliance is using. These meters are supplied by the local power company and are free. Check with you local library and then you can get the exact figures and proof you need. The longer an appliance is used the more electricity that is used, however a fan running on high will use more electricity than a fan running on low. So you may use more electricity running the fan on high for an hour than you will running the fan on low for 2 hours. What the exact trade off for speed versus time is can be determined by tracking usage with a meter.
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