03 resistors and color code

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03 resistors and color code

  1. 1. Resistors and the Resistor Color Code<br />
  2. 2. Wire WoundResistors<br />
  3. 3. Carbon Composition Resistors<br />Notice the varying sizes (Wattage Ratings) and that some have four bands and some have five bands.<br />
  4. 4. Variable Resistors: Potentiometers, Photoresistors<br />
  5. 5. Resistor Color Code (4 Bands)<br />(0) Black<br />(1) Brown<br />(2) Red<br />(3) Orange<br />(4) Yellow<br />(5) Green<br />(6) Blue<br />(7) Violet<br />(8) Grey<br />(9) White<br />1st Digit<br />Multiplier<br />Tolerance<br />2nd Digit<br />Tolerance Band: Brown = ±1%, Red = ±2%, Gold = ±5%, Silver = ± 10 %<br />
  6. 6. Resistor Color Code (4 Bands)<br />(0) Black<br />(1) Brown<br />(2) Red<br />(3) Orange<br />(4) Yellow<br />(5) Green<br />(6) Blue<br />(7) Violet<br />(8) Grey<br />(9) White<br />±5%<br />000<br />7<br />4<br />1st Digit<br />Multiplier<br />Tolerance<br />2nd Digit<br />Tolerance Band: Brown = ±1%, Red = ±2%, Gold = ±5%, Silver = ± 10 %<br />
  7. 7. Resistor Color Code (4 Bands)<br />(0) Black<br />(1) Brown<br />(2) Red<br />(3) Orange<br />(4) Yellow<br />(5) Green<br />(6) Blue<br />(7) Violet<br />(8) Grey<br />(9) White<br />-<br />5<br />1<br />±10%<br />1st Digit<br />Multiplier<br />Tolerance<br />2nd Digit<br />Tolerance Band: Brown = ±1%, Red = ±2%, Gold = ±5%, Silver = ± 10 %<br />
  8. 8. Calculating the Tolerance: Previous Example<br />(0) Black<br />(1) Brown<br />(2) Red<br />(3) Orange<br />(4) Yellow<br />(5) Green<br />(6) Blue<br />(7) Violet<br />(8) Grey<br />(9) White<br />1<br />5<br />±10%<br />-<br />1st Digit<br />Multiplier<br />Tolerance<br />2nd Digit<br />15 X 10%= 1.5 Ω<br />The tolerance range for this resistor is 13.5 – 16.5 Ω<br />Tolerance Band: Brown = ±1%, Red = ±2%, Gold = ±5%, Silver = ± 10 %<br />
  9. 9. Resistor Color Code (4 Bands): Less than 10 Ω<br />(0) Black<br />(1) Brown<br />(2) Red<br />(3) Orange<br />(4) Yellow<br />(5) Green<br />(6) Blue<br />(7) Violet<br />(8) Grey <br />(9) White <br />(.01) Silver<br />(.1) Gold<br />±5%<br />6<br />5<br />*.1<br />R =5.6 Ω<br />A resistor that has a value less than 10 Ω will be silver or gold in the multiplier band.<br />1st Digit<br />Multiplier<br />Tolerance<br />2nd Digit<br />Tolerance Band: Brown = ±1%, Red = ±2%, Gold = ±5%, Silver = ± 10 %<br />
  10. 10. Resistor Color Code (5 Bands)<br />(0) Black<br />(1) Brown<br />(2) Red<br />(3) Orange<br />(4) Yellow<br />(5) Green<br />(6) Blue<br />(7) Violet<br />(8) Grey<br />(9) White<br />000<br />±2%<br />6<br />8<br />2<br />1st Digit<br />Multiplier<br />Tolerance<br />3rd Digit<br />2nd Digit<br />Tolerance Band: Brown = ±1%, Red = ±2%, Gold = ±5%, Silver = ± 10 %<br />
  11. 11. Online Color Code Apps<br />http://www.dannyg.com/examples/res2/resistor.htm<br />http://samengstrom.com/nxl/3660/4_band_resistor_color_code_page.en.html<br />
  12. 12. Check for Understanding<br />Throw out a few resistors to students and determine values as a class.<br />Give the students the values and then have them determine the colors of the bands.<br />Resistor Color Code Worksheet and Lab<br />

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