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Because they're very small components. It's easier to mark them with coloured bands, then you can 'decode' the bands according to the internationally agreed colour-coding system.

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14y ago

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What happens to the value of a resistor when it goes bad?

we can say that a resistor gone bad if 1. its resistance is different than that printed by the color code 2. doesn't conduct any current Resistors normally will burn open. Carbon resistors almost always do this, while wireound resistors can lower in resistance. They may still allow current flow, but it will not be correct.


Which resistor would you choose if you were asked to pick a resistor to use on a printed-circuit board circuit in which a large number of identical resistors were required?

For a printed-circuit board (PCB) requiring a large number of identical resistors, I would choose surface-mount resistors due to their compact size and ease of automation in assembly processes. Specifically, I would opt for 0805 or 0603 packages, as they strike a good balance between size and power handling. Additionally, I would select resistors with a tolerance of 1% or better for consistent performance across the circuit. This choice ensures efficiency in manufacturing and reliability in the final product.


What is the advantage of film resistors over carbon resister?

Film resistors have lower noise than carbon resistors.


What is your observation of resistors in series?

I observe that the total effective resistance of several resistors in series is the sum of the individual resistance values of the individual resistors.


In a circuit the voltage across all resistores is the same?

It depends upon the connection of the resistors, if the resistors are connected in parallel then the voltage is same where as in case of resistors connected in series the voltage is different across different resistors.

Related Questions

Why do you think that the color was established for very small resistors?

-- I think one reason was that it's so difficult to print numbers on them or to read such numbers. -- I think another reason is that if the resistor gets scraped along one side, printed numbers or letters could be scraped off and completely lost, but color bands are still readable on the other side.


What are IPDs?

IPD is an abbreviation for integrated passive device, which contains capacitors, resistors, inductors, and other components on a printed-circuit board.


What are the two numbers printed on your Global Entry card?

The two numbers printed on your Global Entry card are your PASSID and your membership number.


Do checks have account numbers printed on them?

Yes, checks typically have the account number printed on them.


Numbers printed at the bottom of a check are called?

what are the numbers at the bottom of a check called


Does it matter which way a emitter resistor is installed?

A resistor is not polarity sensitive, and may be installed in either direction. That's why resistors don't have pluses ( + ) or minuses ( - ) printed on them.


What happens to the value of a resistor when it goes bad?

we can say that a resistor gone bad if 1. its resistance is different than that printed by the color code 2. doesn't conduct any current Resistors normally will burn open. Carbon resistors almost always do this, while wireound resistors can lower in resistance. They may still allow current flow, but it will not be correct.


Do racing cars have numbers printed on them?

Yes! Of cause they do!


Which resistor would you choose if you were asked to pick a resistor to use on a printed-circuit board circuit in which a large number of identical resistors were required?

For a printed-circuit board (PCB) requiring a large number of identical resistors, I would choose surface-mount resistors due to their compact size and ease of automation in assembly processes. Specifically, I would opt for 0805 or 0603 packages, as they strike a good balance between size and power handling. Additionally, I would select resistors with a tolerance of 1% or better for consistent performance across the circuit. This choice ensures efficiency in manufacturing and reliability in the final product.


What are those materials of resistors?

most of the resistors commonly used are carbon resistors


How do they make radios?

Most radios begin with a printed circuit board- metallic copper printed onto a fiberglass board- this will be most of the wiring. A computer controlled machine "stuffs" the holes in the circuit board with transistors, capacitors and resistors, and they are all soldered in place at one time.


Do number formats affect how numbers look on screen when printed?

yes