This document defines common units and symbols used to describe electrical quantities such as charge, current, resistance, potential difference, energy, and power. It provides definitions for units like the coulomb (C) for charge, ampere (A) for current, ohm (Ω) for resistance, volt (V) for potential difference, joule (J) for energy, and watt (W) for power. Conversion factors are given, such as 1 C = 6.25 x 1018 electrons and 1 W = 1 J/s. Formulas are also listed relating variables like current, resistance, potential difference, and energy.

1. MAGNITUDEAK IKURRA FORMULA UNITATEA NS SINBOLOA BALIOKIDEAK
KARGA
ELEKTRIKOAK
Q Coulomb-a C
1 C = 6,25·10 18
elektroi
1μC=10-6C
INTENTSITATEA
I I = Q/t Anpere-a A 1 A = C/ s
ERRESISTENTZIA
R R = ρ·L/S Onmio-a Ω
POTENTZIAL-DIFERENTZIA
EDO TENTSIOA
ΛV ΛV = I·R Volt-a V 1 V= A· Ω
ENERGIA E
E= I2·R·t
E= I·t· ΛV
E=P·t
E= ΛV2·t/R
Joule
Kwh J
POTENTZIA
P P= E/t
P=I2·R
Watt-a
W W=J/S
Kwh=3,6·106 J