Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 423 · 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.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-brown (b) blue-white-brown (c) white-blue-black (d) white-blue-red
3. 3.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-red (b) blue-orange-orange (c) blue-orange-yellow (d) orange-blue-orange
5. 5.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) orange-black-brown (b) orange-black-red (c) yellow-orange-red (d) orange-black-orange
7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) orange-yellow-orange (b) yellow-orange-red (c) yellow-orange-yellow (d) yellow-orange-orange
9. 9.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
10. 10.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
11. 11.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
12. 12.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 In the resistor colour code, which number does red stand for?
14. 14.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) violet-yellow-orange (b) yellow-violet-orange (c) violet-yellow-yellow (d) violet-yellow-red
16. 16.🌈 In the resistor colour code, which number does brown stand for?
17. 17.🌈 In the resistor colour code, which number does green stand for?
18. 18.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-brown (b) green-white-red (c) white-green-orange (d) white-green-red
20. 20.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
21. 21.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
23. 23.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
24. 24.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-brown (b) brown-grey-red (c) grey-brown-red (d) brown-grey-orange
26. 26.🌈 In the resistor colour code, which number does blue stand for?
27. 27.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
28. 28.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
29. 29.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
30. 30.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
31. 31.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
32. 32.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
33. 33.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
34. 34.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) violet-brown-black (b) brown-violet-brown (c) brown-violet-black (d) red-violet-black
36. 36.🌈 In the resistor colour code, which number does white stand for?
37. 37.🌈 In the resistor colour code, which number does black stand for?
38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) green-orange-black (b) yellow-orange-brown (c) orange-yellow-black (d) yellow-orange-black
39. 39.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-orange (b) yellow-orange-red (c) orange-yellow-brown (d) orange-yellow-red

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