Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 277 · 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, orange, black. What is its value (in ohms)?
2. 2.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
3. 3.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
4. 4.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
7. 7.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
8. 8.🌈 In the resistor colour code, which number does orange stand for?
9. 9.🌈 In the resistor colour code, which number does brown stand for?
10. 10.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
11. 11.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
12. 12.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8500 Ω resistor? (a) green-grey-red (b) grey-green-orange (c) grey-green-red (d) grey-green-brown
14. 14.🌈 In the resistor colour code, which number does black stand for?
15. 15.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
16. 16.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) yellow-white-black (b) brown-yellow-black (c) white-yellow-black (d) white-yellow-brown
18. 18.🌈 In the resistor colour code, which number does white stand for?
19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) red-violet-orange (b) violet-red-orange (c) violet-red-red (d) violet-red-yellow
20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-brown (b) red-orange-black (c) red-red-black (d) orange-red-black
21. 21.🌈 In the resistor colour code, which number does red stand for?
22. 22.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
23. 23.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
24. 24.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
25. 25.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
26. 26.🌈 A resistor has the colour bands white, brown, orange. What is its value (in ohms)?
27. 27.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) yellow-orange-red (b) orange-black-brown (c) orange-black-orange (d) orange-black-red
29. 29.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
30. 30.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
31. 31.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
32. 32.🌈 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
33. 33.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
34. 34.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
35. 35.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
36. 36.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
37. 37.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
38. 38.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
39. 39.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
40. 40.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?

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