Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 119 · 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 a 6000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) violet-blue-red (d) blue-black-brown
2. 2.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-black (b) brown-green-brown (c) green-brown-brown (d) green-brown-red
4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-black (b) white-white-brown (c) white-black-black (d) brown-white-black
6. 6.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) grey-violet-orange (b) violet-grey-orange (c) grey-violet-red (d) grey-violet-yellow
8. 8.🌈 In the resistor colour code, which number does red stand for?
9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-brown (b) green-yellow-orange (c) yellow-green-red (d) green-yellow-red
10. 10.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
11. 11.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
13. 13.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) grey-green-orange (b) green-grey-orange (c) green-grey-red (d) green-grey-yellow
15. 15.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
16. 16.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
17. 17.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
18. 18.🌈 In the resistor colour code, which number does brown stand for?
19. 19.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
20. 20.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
21. 21.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
22. 22.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
23. 23.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
24. 24.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
25. 25.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-red (b) red-blue-black (c) red-blue-brown (d) blue-red-brown
27. 27.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
28. 28.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
29. 29.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
30. 30.🌈 In the resistor colour code, which number does blue stand for?
31. 31.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
32. 32.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
33. 33.🌈 In the resistor colour code, which number does orange stand for?
34. 34.🌈 In the resistor colour code, which number does black stand for?
35. 35.🌈 In the resistor colour code, which number does green stand for?
36. 36.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
39. 39.🌈 In the resistor colour code, which number does yellow stand for?
40. 40.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?

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