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shahroz
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What will be the color code of a zero Ohm resistance?
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Not really such a daft idea, actually. The zero ohm link could be replaced by a link, when required, with finite resistance which would fit straight into position.Nidum said:If you ask enough silly questions you will just sometimes get a sensible answer :
https://en.wikipedia.org/wiki/Zero-ohm_link
Yup, very common in industry practice. One incorporates a number of "jumpers" into the circuit design. Removing or adding zero-ohm resistors at those points selects certain circuit behavior - for instance, choice of 5V or 3.3V power.sophiecentaur said:Not really such a daft idea, actually. The zero ohm link could be replaced by a link, when required, with finite resistance which would fit straight into position.
Clever. So this way the PC board doesn't have to be modified, just the component insertion process. When I was an engineer trainee back in the '60s we just used wire jumpers, but then we were doing everything by hand but this is great for automation. I DO recall that the wire jumpers we used (they weren't just wire, they were a plastic form containing pins) were smaller than a resistor form factor and I remember using the same things on PC boards back in the early days of personal computers, but they didn't allow the option of putting an actual component in the same position which, as Sophie points out, these do.tfr000 said:Yup, very common in industry practice. One incorporates a number of "jumpers" into the circuit design. Removing or adding zero-ohm resistors at those points selects certain circuit behavior - for instance, choice of 5V or 3.3V power.
I use lots of these in commercial gear I buildNidum said:If you ask enough silly questions you will just sometimes get a sensible answer :
https://en.wikipedia.org/wiki/Zero-ohm_link
https://en.wikipedia.org/wiki/Electronic_color_code#Resistor_color-codingshahroz said:What will be the color code of a zero Ohm resistance?
JBA said:I would think that term would only apply to a superconductor jumper; but, I guess the correct tolerance band value deals with that issue.
JBA said:but, I guess the correct tolerance band value deals with that issue.
The color code of resistance is a system used to identify the resistance value of a resistor. It consists of a series of colored bands that are placed on the resistor, each representing a specific digit or multiplier.
There are typically four to six colored bands used in the color code of resistance, depending on the precision of the resistor. The more bands there are, the more precise the resistance value will be.
Each color represents a specific number or multiplier. The first two bands indicate the first and second digits of the resistance value, the third band represents the multiplier, and the fourth band (if present) indicates the tolerance of the resistor.
To read the color code of resistance, start by identifying the first band on the left and determine its color. Then, do the same for the second band. Use a color chart or mnemonic device to match the colors to their corresponding numbers. Finally, identify the third band and multiply the first two digits by the multiplier value to get the resistance value in ohms.
The color code of resistance is important because it allows us to quickly and easily determine the resistance value of a resistor without the need for complex calculations. It is also used to identify the correct placement of resistors on a circuit board, ensuring the proper functioning of electronic devices.