Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 83 · 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 black stand for?
2. 2.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
3. 3.🌈 In the resistor colour code, which number does grey stand for?
4. 4.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
5. 5.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-orange (b) brown-red-brown (c) brown-red-red (d) red-brown-red
8. 8.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
9. 9.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
10. 10.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-red (b) green-grey-brown (c) grey-green-red (d) green-grey-orange
12. 12.🌈 A resistor has the colour bands yellow, orange, red. What is its value (in ohms)?
13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) orange-blue-red (b) blue-orange-brown (c) blue-orange-red (d) blue-orange-orange
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) white-grey-orange (b) grey-black-yellow (c) grey-black-orange (d) grey-black-red
15. 15.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
16. 16.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
17. 17.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
18. 18.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-brown (b) orange-yellow-red (c) orange-orange-orange (d) orange-orange-red
20. 20.🌈 In the resistor colour code, which number does brown stand for?
21. 21.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
22. 22.🌈 In the resistor colour code, which number does green stand for?
23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-orange (b) brown-blue-red (c) blue-brown-brown (d) blue-brown-red
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-black (b) brown-brown-black (c) white-brown-brown (d) brown-white-black
25. 25.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) yellow-red-orange (b) yellow-red-red (c) red-yellow-orange (d) yellow-red-yellow
27. 27.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-brown (b) grey-red-red (c) red-grey-brown (d) grey-red-black
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) orange-red-black (b) red-red-brown (c) red-orange-black (d) red-red-black
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) blue-grey-yellow (b) blue-grey-red (c) blue-grey-orange (d) grey-blue-orange
31. 31.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) violet-red-red (b) red-violet-orange (c) red-violet-brown (d) red-violet-red
34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85000 Ω resistor? (a) grey-green-red (b) green-grey-orange (c) grey-green-orange (d) grey-green-yellow
35. 35.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-yellow (b) grey-yellow-orange (c) yellow-grey-orange (d) grey-yellow-red
38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) grey-red-black (b) violet-red-black (c) red-violet-black (d) violet-red-brown
39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-white-red (b) grey-grey-orange (c) grey-grey-red (d) grey-grey-brown
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-brown (b) grey-orange-red (c) grey-orange-orange (d) orange-grey-red

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