Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 162 · 40 questions

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

1. 1.🌈 In the resistor colour code, which number does blue stand for?
2. 2.🌈 In the resistor colour code, which number does black stand for?
3. 3.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) yellow-white-orange (b) white-yellow-orange (c) white-yellow-yellow (d) white-yellow-red
6. 6.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
7. 7.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) grey-black-red (b) grey-black-yellow (c) grey-black-orange (d) white-grey-orange
9. 9.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
10. 10.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
11. 11.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) green-blue-orange (b) blue-green-orange (c) green-blue-red (d) green-blue-yellow
15. 15.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
16. 16.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
17. 17.🌈 In the resistor colour code, which number does white stand for?
18. 18.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
19. 19.🌈 In the resistor colour code, which number does orange stand for?
20. 20.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
21. 21.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) yellow-violet-red (b) violet-yellow-red (c) violet-yellow-orange (d) violet-yellow-brown
23. 23.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-brown (b) red-brown-red (c) red-brown-black (d) brown-red-brown
25. 25.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
26. 26.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
27. 27.🌈 In the resistor colour code, which number does yellow stand for?
28. 28.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) grey-blue-black (b) blue-grey-black (c) violet-grey-black (d) blue-grey-brown
30. 30.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
31. 31.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) yellow-grey-orange (b) grey-yellow-red (c) grey-yellow-orange (d) grey-yellow-yellow
34. 34.🌈 In the resistor colour code, which number does brown stand for?
35. 35.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
36. 36.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
37. 37.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
39. 39.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
40. 40.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =

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