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A resistor will resist the flow of electricity equally in both directions. It is defined as a circuit element that presents a resistance to the flow of electric current. A current flowing through a resistance will create a voltage drop across that resistance in accordance with Ohm's law.[[Image:resistorsymbol.png|left]] A resistor will resist the flow of electricity equally in both directions. It is defined as a circuit element that presents a resistance to the flow of electric current. A current flowing through a resistance will create a voltage drop across that resistance in accordance with Ohm's law.== Resistor Types ==== Wirewound Resistors ==These are made from winding a metal alloy wire (Nichrome) or similar wire onto an insulating ceramic former. === Noninductive Resistor ===:A wire-wound resistor constructed to have practically no inductance, either by using a hairpin winding or be reversing connections to adjacent sections of the winding.== Resistor Color Code ==The resistor color code is a coding system of colored stripes on a resistor to indicate the resistor's value and tolerance. The resistance indicated by the color code is in Ohms.=== Chart: 4 color bar resistors === Color 1. 2. 3. 4. --------------------------------------------------- Black | 0 | 0 | - | Brown | 1 | 1 | 0 | Red | 2 | 2 | 00 | Orange | 3 | 3 | 000 | Yellow | 4 | 4 | 0 000 | Green | 5 | 5 | 00 000 | Blue | 6 | 6 | 000 000 | Violet | 7 | 7 | | Gray | 8 | 8 | | White | 9 | 9 | | Gold | | | x 0.1 | 5 % Silver | | | x 0.01 | 10 % ---------------------------------------------------[[Image:Resistor4bandcolor.png]]=== Chart: 5 color bar resistors ===More accurate resistors have 5 color bars. To read their value in ohm use the following table: Color 1. 2. 3. 4. 5. --------------------------------------------------- Black | 0 | 0 | 0 | - | Brown | 1 | 1 | 1 | 0 | 1 % Red | 2 | 2 | 2 | 00 | 2 % Orange | 3 | 3 | 3 | 000 | Yellow | 4 | 4 | 4 | 0 000 | Green | 5 | 5 | 5 | 00 000 | Blue | 6 | 6 | 6 | 000 000 | Violet | 7 | 7 | 7 | | Gray | 8 | 8 | 8 | | White | 9 | 9 | 9 | | Gold | | | | x 0.1 | Silver | | | | x 0.01 | ---------------------------------------------------*non-inductive[[Category:Electronics]][[Category:Electronic Components]]