The document contains formulas for calculating voltage, current, power, and resistance in electrical circuits. It shows that voltage equals current times resistance, power equals voltage times current, and resistance equals voltage squared over power or current squared over power. Color bands on resistors are used to indicate resistance values and tolerances.

1. Volts
Amperes =
Volts= Watts x Ohms Ohms
Watts
Amperes=
Volts= Amperes x Ohms Ohms
Watts Watts
Volts = Amperes=
Amperes Volts
Volts
Ohms =
Amperes Volts2
Watts =
Ohms
Watts
Ohms =
Amperes2 Watts = Volts x Amperes
Volts2
Ohms =
Watts Watts = Amperes2 x Ohms

2. COLOR 1º Y 2º 3º BANDA COLOR 4º BANDA
BANDA MULTIPLICADOR TOLERANCIA
NEGRO 0 X1 CAFE ±1%
CAFE 1 X 10 ROJO ±2%
ROJO 2 X 100 NARANJA ±3 %
NARANJA 3 X 1,000 AMARILLO ±4 %
AMARILLO 4 X 10,000 ORO ±5 %
VERDE 5 X 100,000 PLATA ± 10 %
AZUL 6 X 1,000,000 SIN BANDA ±20 %
VIOLETA 7
GRIS 8
BLANCO 9