Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 94 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
2. 2.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
3. 3.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
4. 4.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
5. 5.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
6. 6.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
7. 7.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
8. 8.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) yellow-blue-red (b) yellow-blue-black (c) yellow-blue-brown (d) blue-yellow-brown
10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-red (b) brown-brown-yellow (c) brown-brown-orange (d) brown-red-orange
11. 11.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-red (b) violet-white-orange (c) violet-white-brown (d) white-violet-red
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-black (b) grey-white-brown (c) white-grey-red (d) white-grey-brown
15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) blue-white-black (b) green-white-brown (c) green-white-black (d) white-green-black
16. 16.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) grey-brown-black (b) red-grey-black (c) brown-grey-brown (d) brown-grey-black
18. 18.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
19. 19.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 860 Ω resistor? (a) grey-blue-brown (b) grey-blue-black (c) grey-blue-red (d) blue-grey-brown
21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) grey-violet-black (b) violet-grey-brown (c) violet-grey-black (d) grey-grey-black
22. 22.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
23. 23.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
24. 24.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) violet-yellow-red (b) yellow-violet-orange (c) violet-yellow-orange (d) violet-yellow-yellow
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) orange-red-orange (b) red-orange-orange (c) red-orange-yellow (d) red-orange-red
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) violet-green-black (b) green-violet-black (c) grey-green-black (d) violet-green-brown
28. 28.🌈 In the resistor colour code, which number does yellow stand for?
29. 29.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
30. 30.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-orange (b) blue-green-red (c) green-black-brown (d) green-black-red
32. 32.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
33. 33.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
34. 34.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
35. 35.🌈 In the resistor colour code, which number does orange stand for?
36. 36.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
39. 39.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) yellow-orange-brown (b) orange-yellow-red (c) orange-yellow-black (d) orange-yellow-brown

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