Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 705 · 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 colour bands (1st digit, 2nd digit, multiplier) mark an 8400 Ω resistor? (a) yellow-grey-red (b) grey-yellow-brown (c) grey-yellow-red (d) grey-yellow-orange
2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-brown (c) yellow-violet-black (d) yellow-violet-red
3. 3.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
4. 4.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
6. 6.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
7. 7.🌈 In the resistor colour code, which number does red stand for?
8. 8.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-yellow (b) violet-black-red (c) grey-violet-orange (d) violet-black-orange
10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-brown (b) orange-grey-red (c) grey-orange-red (d) orange-grey-orange
11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) violet-brown-black (b) red-violet-black (c) brown-violet-black (d) brown-violet-brown
12. 12.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
13. 13.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
14. 14.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
15. 15.🌈 In the resistor colour code, which number does orange stand for?
16. 16.🌈 In the resistor colour code, which number does green stand for?
17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-black (b) green-grey-brown (c) blue-grey-black (d) grey-green-black
18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-brown (b) red-brown-black (c) brown-red-black (d) orange-brown-black
19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-brown (b) red-brown-red (c) brown-black-red (d) brown-black-orange
20. 20.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
21. 21.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
22. 22.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
23. 23.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) blue-orange-red (b) blue-orange-brown (c) blue-orange-orange (d) orange-blue-red
25. 25.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-red (b) white-red-brown (c) white-red-black (d) red-white-brown
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) blue-green-red (b) green-blue-orange (c) green-blue-red (d) green-blue-brown
28. 28.🌈 In the resistor colour code, which number does black stand for?
29. 29.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-brown (b) brown-white-black (c) brown-brown-black (d) white-brown-black
31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) red-black-red (c) orange-red-red (d) red-black-brown
32. 32.🌈 In the resistor colour code, which number does white stand for?
33. 33.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
34. 34.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
35. 35.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-red (b) white-grey-orange (c) white-grey-brown (d) grey-white-red
38. 38.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-red (b) brown-orange-yellow (c) brown-orange-orange (d) orange-brown-orange
40. 40.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?

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