Friday, 23 March 2012

Menghitung Nilai Resistor

Resistor is the basic electronic components used to limit the amount of current flowing in one circuit. As the name implies is a resistive resistor and generally made of carbon materials. From Ohms law is known, the resistance is inversely proportional to the amount of current flowing through it. Unit resistance of a resistor is called Ohm or represented by the symbol W (Omega).

A common type of resistor is shaped tube with two feet of copper on the left and right. In the body there is formed a circle bracelet color code to identify the user greater ease without measuring the amount of resistance with ohmmeter. Color code is the manufacturing standards issued by EIA (Electronic Industries Association). as shown in the table below.

Table Gelang Warna Resistor



Example:
The order of the color ring (4 rings resistor color (4 gelang warna)): red, Purple, blue, gold
  • bracelet color 1: the first number
  • bracelet color 2: the second number
  • bracelet color 3: the multiplication factor
  • bracelet color 4: tolerance
The order of the color rings (5 rings resistor color (5 gelang warna)): brown, red, black, orange, brown
  • bracelet color 1: the first number
  • bracelet color 2: the second number
  • bracelet color 3: the third number
  • bracelet color 4: the multiplication factor
  • bracelet color 5: tolerance
The amount depends on the size watt resistor or the maximum power that can hold by resistors. Generally in the market available sizes 1 / 8, 1 / 4, 1, 2, 5, 10 and 20 watts. Resistor has a maximum power of 5, 10 and 20 watts is generally shaped white blocks and the value Direct printed dibadannya resistance, such as 1K 5W.
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