Electrical Symbols, Formulas (Formulaes) & Equations Used in the Electrical Industry.

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a1

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Listed here is the webpage that I have put together containing the "Electrical Symbols, Formulas (Formulaes) & Equations Used in the Electrical Industry".

As soon as I get time I will put on the level Three (3) formulas, as well as the ones used to work out problems in the 302 & 303 written exams.

I hope you make good use of them.

www.electricianforum.co.uk/electricalformulas.html

Un-pinned as sadly the lined page no longer exists
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Last edited by a moderator:
I think a couple are wrong!!

Power is the rate at which work is done so

Power = Work / Time (shown as Power = work x time)

And the voltage calculation works if your talking about the Voltage across the resistor and the voltage across the Inductor so the symbols should read Vr and Vxl not just R and Xl.

The calculation shown would give impedance using resistance and inductive reactance as stated by andyc

 
I shall correct them on the next update - Thank You Gentlemen.

 
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