In our homes we use AC because you can change the value of the voltage very easy with transformers. Its very important to step up the voltage (and step down the current, so power remains the same) generated from the power station and transmit it at this stepped up voltage to minimize losses. Then we have to step down the voltage down to safe levels to be able to use it with safety (this doesnt mean that it cant still kill you) at home. As i said this is achieved easily with transformers. With DC is more complicated and expensive to make this conversion in voltage levels thus we use AC.this is a qustion that i allways look for an ansewear to it !!!!
why just we use DC , is the load have something realated to it??
any response would be appreciated .....
Not quite. The advantages of AC generation and distribution outweigh those of DC. AC is easier to generate, distribute, step up, step down....thanx guys for fast response ....all what you have said is fine,but
in my opinion i think that the reason behind using AC not DC ...because
simply we have different loads at home ,such as tv , Air conidition
referegrator , light ,and so forth ,this load take different voltage, so
we cant use DC ,because dc has constant value that will not turn on all these devices .
i hope that its true.........and thanx agine.....
Most AC motors won't run on DC.There is also the fact that a lot of electric motors run better off AC.
Yep, at least the first few. I'm sure Thomas Edison was very upset by the fact that Tesla had created motors that ran just fine without brushes or commutators.A lot of these were invented by Dr. Tesla too.
Absolutely true.The the step up and step down in voltages is the big reason, as has been mentioned, there simply wasn't any other way to do it back then (they didn't even have tubes when electricity was starting to be used by homes).
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