Resistor Color Expert
Level 1
10 Points
Instructions
In this exercise, you are going to create a helpful program so that you don't have to remember the values of the bands. The program will take 1, 4, or 5 colors as input and output the correct value in ohms. The color bands are encoded as follows:
- black: 0
- brown: 1
- red: 2
- orange: 3
- yellow: 4
- green: 5
- blue: 6
- violet: 7
- grey: 8
- white: 9
In Resistor Color Trio you decoded the first three color bands.
For instance: orange-orange-brown translated to the main value 330.
In this exercise you will need to add tolerance to the mix.
Tolerance is the maximum amount that a value can be above or below the main value.
For example, if the last band is green, the maximum tolerance will be ±0.5%.
The tolerance band will have one of these values:
- grey - 0.05%
- violet - 0.1%
- blue - 0.25%
- green - 0.5%
- brown - 1%
- red - 2%
- gold - 5%
- silver - 10%
The four-band resistor is built up like this:
| Band_1 | Band_2 | Band_3 | Band_4 |
|---|---|---|---|
| Value_1 | Value_2 | Multiplier | Tolerance |
Examples:
- orange-orange-brown-green would be
330ohms with a±0.5%tolerance. - orange-orange-red-grey would be
3300ohms with a±0.05%tolerance.
The difference between a four and five-band resistor is that the five-band resistor has an extra band to indicate a more precise value.
| Band_1 | Band_2 | Band_3 | Band_4 | Band_5 |
|---|---|---|---|---|
| Value_1 | Value_2 | Value_3 | Multiplier | Tolerance |
Examples:
- orange-orange-orange-black-green would be
333ohms with a±0.5%tolerance. - orange-red-orange-blue-violet would be
323 millionohms with a±0.1%tolerance.
There are also one band resistors. One band resistors only have the color black with a value of 0.
Your program should translate an input list of resistor band colors into a label:
"... ohms ±...%"
So an input list of ["orange", "orange", "black", "green"] should return:
"33 ohms ±0.5%"
When there are thousands of ohms, we say "kiloohms". That's similar to saying "kilometer" for 1000 meters, and "kilograms" for 1000 grams.
So an input list of ["orange", "orange", "orange", "grey"] should return:
"33 kiloohms ±0.05%"
When there are millions of ohms, we say "megaohms".
So an input list of ["orange", "orange", "blue", "red"] should return:
"33 megaohms ±2%"
Resistor Color Expert
Level 1
10 Points
Instructions
In this exercise, you are going to create a helpful program so that you don't have to remember the values of the bands. The program will take 1, 4, or 5 colors as input and output the correct value in ohms. The color bands are encoded as follows:
- black: 0
- brown: 1
- red: 2
- orange: 3
- yellow: 4
- green: 5
- blue: 6
- violet: 7
- grey: 8
- white: 9
In Resistor Color Trio you decoded the first three color bands.
For instance: orange-orange-brown translated to the main value 330.
In this exercise you will need to add tolerance to the mix.
Tolerance is the maximum amount that a value can be above or below the main value.
For example, if the last band is green, the maximum tolerance will be ±0.5%.
The tolerance band will have one of these values:
- grey - 0.05%
- violet - 0.1%
- blue - 0.25%
- green - 0.5%
- brown - 1%
- red - 2%
- gold - 5%
- silver - 10%
The four-band resistor is built up like this:
| Band_1 | Band_2 | Band_3 | Band_4 |
|---|---|---|---|
| Value_1 | Value_2 | Multiplier | Tolerance |
Examples:
- orange-orange-brown-green would be
330ohms with a±0.5%tolerance. - orange-orange-red-grey would be
3300ohms with a±0.05%tolerance.
The difference between a four and five-band resistor is that the five-band resistor has an extra band to indicate a more precise value.
| Band_1 | Band_2 | Band_3 | Band_4 | Band_5 |
|---|---|---|---|---|
| Value_1 | Value_2 | Value_3 | Multiplier | Tolerance |
Examples:
- orange-orange-orange-black-green would be
333ohms with a±0.5%tolerance. - orange-red-orange-blue-violet would be
323 millionohms with a±0.1%tolerance.
There are also one band resistors. One band resistors only have the color black with a value of 0.
Your program should translate an input list of resistor band colors into a label:
"... ohms ±...%"
So an input list of ["orange", "orange", "black", "green"] should return:
"33 ohms ±0.5%"
When there are thousands of ohms, we say "kiloohms". That's similar to saying "kilometer" for 1000 meters, and "kilograms" for 1000 grams.
So an input list of ["orange", "orange", "orange", "grey"] should return:
"33 kiloohms ±0.05%"
When there are millions of ohms, we say "megaohms".
So an input list of ["orange", "orange", "blue", "red"] should return:
"33 megaohms ±2%"