Physics: Resistor Color Codes 0 Through 9 Practice
Practice matching resistor color bands to digit values
Physics: Resistor Color Codes 0 Through 9 Practice
Practice matching resistor color bands to digit values
Physics - Grade 9-12
- 1
A resistor has a first band that is red and a second band that is green. What two-digit number do these bands represent?
The first two bands are read as the first and second digits.
Red represents 2 and green represents 5, so the two bands represent the number 25. - 2
Write the color code digit for each color: black, yellow, blue, and white.
Black represents 0, yellow represents 4, blue represents 6, and white represents 9. - 3
A resistor begins with the bands brown and black. What two-digit number is shown by these first two bands?
A black band can be a digit, even though its value is zero.
Brown represents 1 and black represents 0, so the first two bands show the number 10. - 4
Which two colors would you use for the first two bands of a resistor if you wanted to show the number 47?
The number 47 would use yellow for 4 and violet for 7, so the first two bands should be yellow and violet. - 5
A student says that orange = 4 and yellow = 3. Explain the mistake and give the correct values.
The color sequence goes black, brown, red, orange, yellow.
The student has switched the values. Orange represents 3, and yellow represents 4. - 6
A resistor has first and second bands gray and red. What two-digit number do these bands represent?
Gray represents 8 and red represents 2, so the bands represent the number 82. - 7
Complete the missing values in this sequence of resistor color digits: black = 0, brown = 1, red = 2, orange = 3, yellow = 4, green = __, blue = __, violet = __, gray = __, white = __.
After yellow = 4, the values continue upward by 1 for each color.
The missing values are green = 5, blue = 6, violet = 7, gray = 8, and white = 9. - 8
Which first two resistor bands would represent the number 09?
The number 09 would use black for 0 and white for 9, so the first two bands would be black and white. - 9
A resistor shows the first two bands violet and brown. Another resistor shows the first two bands brown and violet. Do they represent the same number? Explain.
Band order matters because the first band is the tens digit and the second band is the ones digit.
They do not represent the same number. Violet and brown represent 71, while brown and violet represent 17. - 10
Make a two-column table that lists each digit from 0 through 9 and its resistor color code.
The table should list 0 black, 1 brown, 2 red, 3 orange, 4 yellow, 5 green, 6 blue, 7 violet, 8 gray, and 9 white. - 11
A resistor has first and second bands green and orange. What two-digit number do the bands represent, and which band gives the tens digit?
Read the bands from left to right.
Green represents 5 and orange represents 3, so the bands represent 53. The green band gives the tens digit because it is the first band. - 12
Choose the correct color pair for the number 68: blue and gray, blue and orange, green and gray, or violet and black. Explain your choice.
The correct color pair is blue and gray because blue represents 6 and gray represents 8.