Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 843 · 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 blue, black, orange. What is its value in kilo-ohms (kΩ)? =
2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) violet-white-brown (b) white-violet-black (c) grey-white-black (d) violet-white-black
3. 3.🌈 In the resistor colour code, which number does green stand for?
4. 4.🌈 In the resistor colour code, which number does yellow stand for?
5. 5.🌈 In the resistor colour code, which number does orange stand for?
6. 6.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
7. 7.🌈 In the resistor colour code, which number does brown stand for?
8. 8.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
9. 9.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
10. 10.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
11. 11.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25000 Ω resistor? (a) red-green-red (b) green-red-orange (c) red-green-yellow (d) red-green-orange
15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-brown (b) violet-white-orange (c) violet-white-red (d) white-violet-red
16. 16.🌈 In the resistor colour code, which number does grey stand for?
17. 17.🌈 In the resistor colour code, which number does white stand for?
18. 18.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
19. 19.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
20. 20.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
21. 21.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-black (b) green-red-brown (c) red-green-black (d) blue-red-black
24. 24.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
25. 25.🌈 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
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1700 Ω resistor? (a) brown-violet-brown (b) brown-violet-orange (c) brown-violet-red (d) violet-brown-red
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) green-orange-brown (b) orange-green-red (c) orange-green-brown (d) orange-green-black
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-red (b) brown-red-brown (c) red-brown-brown (d) red-brown-black
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) yellow-white-red (b) white-yellow-orange (c) white-yellow-red (d) white-yellow-brown
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) grey-white-brown (b) white-grey-brown (c) white-grey-black (d) white-grey-red
31. 31.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) brown-yellow-red (b) yellow-brown-orange (c) brown-yellow-orange (d) brown-yellow-yellow
33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) yellow-red-black (b) yellow-red-brown (c) red-yellow-brown (d) yellow-red-red
34. 34.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
35. 35.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
37. 37.🌈 In the resistor colour code, which number does blue stand for?
38. 38.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
39. 39.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
40. 40.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?

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