Electricity 4: Energy and Power

The higher electricity, Higher energy

Electric energy can be related with voltage, current and resistance

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W = Q V and Q=It

We will get W = It x V or simpler as

​W = Vit​

Work and Energy are the same​, their si unit is Joule

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Sometimes you dont get V, I and T

From V = IR, use it to replace what you don't have.

If you dont have V, Replace it with IR and so on. So we got:

E=VIt

E= (V²/R)t

E= I²Rt​

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Similar with electrical power, remove time from Energy formula

P = VI

P = V²/R

P= I² R​

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