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The difference between a 100-ohm resistor and a 120-ohm resistor lies in their resistance values, which affects how they limit current in an electrical circuit. A 100-ohm resistor will allow more current to flow compared to a 120-ohm resistor for the same voltage, following Ohm's Law (V = IR). This can influence circuit performance, including voltage drop and power dissipation. The choice between the two depends on the specific requirements of the circuit in which they are used.

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An apple- a potato has around 100 ohms while an apple has about 120.


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How is the rating of a light bulb determined for instance 100W 60W is that how many watts an hour to run it?

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An allowable amount of variation on either side of specified measure. If a resistor is labelled as 100 ohms, with 20% tolerance, it might be anywhere from 80 to 120 ohms. If a resistor is labelled as 100 ohms with 10% tolerance, it should range between 90 and 110 ohms. If a resistor is labelled 100 ohm with 5% tolerance, it could vary between 95 and 105 ohms. A tolerance is both ways, if a measure has 10% tolerance, then the total variation is 20%, plus 10 added to minus 10. If you are talking about variation to one side alone, the term is "deviation". If a resistor is supposed to be 100 ohms and actually tests at 105 ohms, it deviates by 5%, but is within allowable variation if it is specified to be within 5% tolerance.


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Well, isn't that a happy little question! To find the percentage increase from 100 to 120, we first calculate the difference between the two numbers, which is 20. Then, we divide this difference by the original number (100) and multiply by 100 to get the percentage increase. In this case, the percentage increase is 20%. Just like adding a touch of bright color to a painting, seeing growth and progress can bring a smile to your day!