Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 293 · 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.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
2. 2.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
3. 3.🌈 A resistor has the colour bands green, orange, yellow. 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) 25 % (d) 50 %
5. 5.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
6. 6.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
7. 7.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
8. 8.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-red (b) brown-red-yellow (c) brown-red-orange (d) red-brown-orange
10. 10.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-blue-red (b) blue-blue-orange (c) blue-violet-red (d) blue-blue-brown
12. 12.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
13. 13.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) brown-green-brown (b) green-brown-black (c) green-brown-brown (d) green-brown-red
15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-brown (b) yellow-blue-black (c) blue-yellow-black (d) green-blue-black
16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-orange (b) orange-grey-orange (c) grey-orange-red (d) grey-orange-yellow
17. 17.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
18. 18.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
19. 19.🌈 In the resistor colour code, which number does brown stand for?
20. 20.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) brown-black-brown (b) brown-black-black (c) red-brown-black (d) red-black-black
22. 22.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) green-red-red (b) red-green-orange (c) red-green-red (d) red-green-brown
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) blue-white-red (b) blue-white-black (c) white-blue-brown (d) blue-white-brown
25. 25.🌈 In the resistor colour code, which number does yellow stand for?
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-red (b) red-yellow-yellow (c) red-yellow-orange (d) yellow-red-orange
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) blue-brown-black (b) brown-blue-brown (c) brown-blue-black (d) red-blue-black
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) grey-brown-red (b) brown-grey-brown (c) brown-grey-red (d) brown-grey-orange
29. 29.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) white-orange-orange (c) white-orange-yellow (d) orange-white-orange
31. 31.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
32. 32.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
33. 33.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-red (b) brown-black-yellow (c) red-brown-orange (d) brown-black-orange
35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) white-violet-brown (b) violet-white-black (c) violet-white-brown (d) violet-white-red
36. 36.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
37. 37.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-brown (b) white-violet-orange (c) white-violet-red (d) violet-white-red
39. 39.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
40. 40.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?

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