Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 611 · 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 yellow, black, brown. What is its value (in ohms)?
2. 2.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-brown (b) yellow-brown-red (c) brown-yellow-brown (d) yellow-brown-black
5. 5.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28000 Ω resistor? (a) red-grey-yellow (b) red-grey-red (c) red-grey-orange (d) grey-red-orange
7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) yellow-red-red (b) yellow-red-black (c) yellow-red-brown (d) red-yellow-brown
8. 8.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) orange-black-orange (b) orange-black-red (c) orange-black-brown (d) yellow-orange-red
10. 10.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
11. 11.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 In the resistor colour code, which number does violet stand for?
13. 13.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-red (c) violet-orange-orange (d) violet-orange-brown
15. 15.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
16. 16.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
17. 17.🌈 In the resistor colour code, which number does black stand for?
18. 18.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
19. 19.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
20. 20.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
21. 21.🌈 In the resistor colour code, which number does white stand for?
22. 22.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
23. 23.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
24. 24.🌈 In the resistor colour code, which number does yellow stand for?
25. 25.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
26. 26.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
27. 27.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
28. 28.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
29. 29.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
30. 30.🌈 In the resistor colour code, which number does grey stand for?
31. 31.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
32. 32.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
33. 33.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
34. 34.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
35. 35.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) green-white-brown (b) white-green-black (c) white-green-red (d) white-green-brown
37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) orange-brown-black (b) brown-orange-black (c) orange-brown-brown (d) yellow-brown-black
38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) white-violet-brown (b) violet-white-black (c) white-violet-black (d) brown-violet-black
39. 39.🌈 In the resistor colour code, which number does red stand for?
40. 40.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?

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