Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 319 · 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 230 Ω resistor? (a) orange-red-brown (b) red-orange-brown (c) red-orange-red (d) red-orange-black
2. 2.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
3. 3.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8700 Ω resistor? (a) grey-violet-red (b) grey-violet-brown (c) violet-grey-red (d) grey-violet-orange
5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
6. 6.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
7. 7.🌈 In the resistor colour code, which number does brown stand for?
8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) red-white-black (c) white-brown-black (d) brown-white-brown
9. 9.🌈 In the resistor colour code, which number does red stand for?
10. 10.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) brown-red-black (b) white-red-brown (c) red-white-black (d) white-red-black
12. 12.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
14. 14.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
15. 15.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
16. 16.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
17. 17.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
18. 18.🌈 In the resistor colour code, which number does orange stand for?
19. 19.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
20. 20.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
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 grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
23. 23.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
24. 24.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
25. 25.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
26. 26.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
27. 27.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-red (b) grey-yellow-brown (c) yellow-grey-brown (d) grey-yellow-black
29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-brown (b) blue-brown-orange (c) blue-brown-red (d) brown-blue-red
30. 30.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
31. 31.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
32. 32.🌈 In the resistor colour code, which number does black stand for?
33. 33.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
34. 34.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
35. 35.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
36. 36.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
37. 37.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
38. 38.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
39. 39.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
40. 40.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =

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