resistor siri dan selari

RESISTORS IN SERIES AND IN PARALLEL

Resistors can be connected together in two ways to give different overall values. This is especially useful if you do not have a resistor of the correct value and need to make it up from other available ones.

1. Resistors in SERIES - When resistors are connected in series, their values are added together:

R _total=R₁+R₂

For example: 1K+1K+3K9=5K9 (total value)

2. Resistors in PARALLEL -When resistors are connected in parallel, their total resistance is given as:

1/R_total = 1/R₁ + 1/R₂

For example: 1/R_total = 1/1K + 1/1K = 0.5K or 500 ohms

OR= R1 x R2

R1 +R2

= 1 x 1 = 1

1 +1 = 2 = 0.5k