Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 924 · 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, blue, orange. What is its value in kilo-ohms (kΩ)? =
2. 2.🌈 In the resistor colour code, which number does brown stand for?
3. 3.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
4. 4.🌈 In the resistor colour code, which number does black stand for?
5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) green-green-black (b) yellow-green-black (c) green-yellow-black (d) yellow-green-brown
7. 7.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
8. 8.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
9. 9.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
10. 10.🌈 In the resistor colour code, which number does white stand for?
11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) yellow-yellow-black (b) green-yellow-black (c) yellow-green-black (d) yellow-yellow-brown
12. 12.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 In the resistor colour code, which number does blue stand for?
14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) violet-blue-orange (d) blue-black-yellow
15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-yellow (b) green-black-red (c) green-black-orange (d) blue-green-orange
16. 16.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
17. 17.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) green-yellow-red (b) yellow-black-orange (c) yellow-black-red (d) yellow-black-brown
19. 19.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1700 Ω resistor? (a) violet-brown-red (b) brown-violet-brown (c) brown-violet-red (d) brown-violet-orange
21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-orange (b) grey-green-orange (c) green-grey-red (d) green-grey-yellow
22. 22.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) white-grey-black (b) brown-grey-black (c) grey-white-black (d) white-grey-brown
24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) yellow-violet-black (b) violet-yellow-brown (c) violet-yellow-black (d) grey-yellow-black
25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-black (b) orange-brown-red (c) orange-brown-brown (d) brown-orange-brown
26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4600 Ω resistor? (a) blue-yellow-red (b) yellow-blue-brown (c) yellow-blue-red (d) yellow-blue-orange
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) orange-brown-red (b) orange-brown-orange (c) orange-brown-yellow (d) brown-orange-orange
28. 28.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-black (b) white-white-red (c) white-black-brown (d) white-white-brown
30. 30.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
31. 31.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
33. 33.🌈 In the resistor colour code, which number does violet stand for?
34. 34.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
35. 35.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) blue-grey-red (b) blue-grey-orange (c) grey-blue-orange (d) blue-grey-yellow
38. 38.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) orange-grey-brown (b) grey-orange-red (c) grey-orange-brown (d) grey-orange-black
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-brown (b) blue-black-red (c) blue-black-orange (d) violet-blue-red

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