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| 3.4 |
Electrical Energy and Power |
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Relationship between\(E\,,V\,,I\) and \(t\) |
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\(E = V \,I\, t\) |
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Relationship between\(P\,,V\) and \(I\)
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\(P=V\,I\) |
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Relationship between\(P\,,V\,,I\) and \(R\)
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\(P=I^2\,R\)
\(P=\dfrac{V^2}{R}\)
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Energy consumed for electrical devices, \(E\) |
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\(E = P\,t\) |
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Cost of consumption |
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\(\text{Total cost} = E \times \text{Cost per kWh}\) |
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