Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 693 · 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 band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
2. 2.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
3. 3.🌈 In the resistor colour code, which number does green stand for?
4. 4.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
5. 5.🌈 In the resistor colour code, which number does violet stand for?
6. 6.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-brown (b) yellow-white-black (c) white-orange-black (d) orange-white-black
8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) white-brown-black (b) brown-white-brown (c) red-white-black (d) brown-white-black
9. 9.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
10. 10.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
11. 11.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
13. 13.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
14. 14.🌈 In the resistor colour code, which number does blue stand for?
15. 15.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
16. 16.🌈 In the resistor colour code, which number does yellow stand for?
17. 17.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
18. 18.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-red (b) brown-blue-orange (c) brown-blue-yellow (d) blue-brown-orange
20. 20.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
21. 21.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
22. 22.🌈 In the resistor colour code, which number does red stand for?
23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-black (b) orange-white-brown (c) white-orange-brown (d) orange-white-red
24. 24.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
25. 25.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
26. 26.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-black (b) brown-red-black (c) red-brown-black (d) brown-brown-brown
28. 28.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
29. 29.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-orange (b) orange-white-red (c) white-orange-red (d) orange-white-brown
31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) brown-grey-red (b) grey-brown-orange (c) grey-brown-red (d) grey-brown-brown
32. 32.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
33. 33.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
34. 34.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-black-black (b) white-white-brown (c) white-white-black (d) brown-white-black
36. 36.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
37. 37.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
38. 38.🌈 In the resistor colour code, which number does black stand for?
39. 39.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-black (b) orange-brown-black (c) brown-orange-brown (d) red-orange-black

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