Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 860 · 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 violet, brown, red. What is its value in kilo-ohms (kΩ)? =
2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
3. 3.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
4. 4.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
5. 5.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
6. 6.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
7. 7.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
8. 8.🌈 In the resistor colour code, which number does black stand for?
9. 9.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
10. 10.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
11. 11.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
12. 12.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-brown (b) white-green-black (c) grey-green-black (d) green-grey-black
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-brown (b) brown-grey-orange (c) brown-grey-red (d) grey-brown-red
15. 15.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
16. 16.🌈 In the resistor colour code, which number does blue stand for?
17. 17.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
18. 18.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
19. 19.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
20. 20.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
21. 21.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-orange (b) blue-grey-brown (c) grey-blue-red (d) blue-grey-red
23. 23.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
24. 24.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
25. 25.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
26. 26.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
27. 27.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-red (b) violet-brown-orange (c) violet-brown-yellow (d) brown-violet-orange
29. 29.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
30. 30.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
31. 31.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
33. 33.🌈 In the resistor colour code, which number does brown stand for?
34. 34.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
35. 35.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-red (b) blue-yellow-orange (c) yellow-blue-orange (d) yellow-blue-yellow
37. 37.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
38. 38.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
39. 39.🌈 In the resistor colour code, which number does violet stand for?
40. 40.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?

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