Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 810 · 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 94000 Ω resistor? (a) white-yellow-orange (b) yellow-white-orange (c) white-yellow-red (d) white-yellow-yellow
2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
3. 3.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
4. 4.🌈 In the resistor colour code, which number does orange stand for?
5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) white-black-brown (b) brown-white-black (c) brown-black-black (d) white-black-black
6. 6.🌈 In the resistor colour code, which number does violet stand for?
7. 7.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
9. 9.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
10. 10.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
11. 11.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
12. 12.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 In the resistor colour code, which number does yellow stand for?
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-red (b) yellow-red-brown (c) yellow-red-orange (d) red-yellow-red
15. 15.🌈 In the resistor colour code, which number does white stand for?
16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) violet-brown-black (b) violet-brown-brown (c) grey-brown-black (d) brown-violet-black
17. 17.🌈 In the resistor colour code, which number does green stand for?
18. 18.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
19. 19.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
20. 20.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
21. 21.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
23. 23.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) orange-yellow-black (b) yellow-yellow-black (c) yellow-orange-black (d) orange-yellow-brown
25. 25.🌈 In the resistor colour code, which number does blue stand for?
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-brown (b) orange-green-orange (c) green-orange-red (d) orange-green-red
27. 27.🌈 In the resistor colour code, which number does black stand for?
28. 28.🌈 In the resistor colour code, which number does brown stand for?
29. 29.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-yellow (b) yellow-yellow-red (c) yellow-green-orange (d) yellow-yellow-orange
31. 31.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
32. 32.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
33. 33.🌈 In the resistor colour code, which number does red stand for?
34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) violet-green-black (b) blue-green-brown (c) green-blue-black (d) blue-green-black
35. 35.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
36. 36.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-orange (b) brown-violet-yellow (c) brown-violet-red (d) violet-brown-orange
38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) brown-grey-black (b) white-grey-brown (c) white-grey-black (d) grey-white-black
39. 39.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-black (b) red-brown-black (c) red-red-black (d) brown-red-brown

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids