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At what end of the ohm's scale are resistance measurements more reliable?
Wiki User
∙ 14y ago
Answer: At the zero end, the measurement is more reliable, because all materials have some conductivity, so even the plastic grip of a meters probe, with both your hands making contact with both the probes, will give you some reading at infinity side of the scale.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoGenerally an ohmmeter will be more accurate near the middle to upper range or the selected range - this is because it will be rated at an error of a certain ohm + / - a certain percentage. As you increase, the base ohms stays the same, but becomes a smaller percentage.
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Why the zero of the ohmmeter scale is usually at the right end of the scale and reading increase towards the left?
Because the meter is actually measuring the current through the resistor, and the two quantities ... current and resistance ... are inversely proportional. So when the meter measures more current, it has to read less resistance, whereas higher resistance will result in less current. So the numbers for resistance have to be printed "backwards" on the meter scale.
Why a turbocharger is not used in a petrol engine?
They certainly are. Using them together with carburetted engines can be a bit tricky, and usually the compression has to be lowered when compared to a naturally aspirated engine.
What happens to the total resistance of a series circuit when another resistor is added?
Simply put, the purpose of a resistor is to 'resist' the flow of current. Ohm's Law tells us that for a given voltage, the larger the resistance, or value of that resistor, the lower the current that will flow. Ohm's Law states that I (current) = E (voltage) / R (resistance) - where current is measured in amps, voltage is measured in volts and resistance is measured in ohms.
Which is more sensitive. temperature scale or celsius scale?
Question is ambiguos, because celsius is a unit meaure of temperature.
What is true about series connections of resistors?
The more resistance there is, the harder it is for current to flow. So the total resistance is the sum of all resistors in series.
At which end of the ohms scale are resistance measurement more reliable the zero end or the infinity end?
On an analog ohmmeter, measurements are more precise and more accurate at the zero end of the scale.
How do you scale something?
A set of measurements is taken of a physical object or space, and the measurements uniformly reduced by a large factor, to create a model or chart in a smaller, more usable form. e.g. Scale models of buildings, terrain maps.
Why the zero of the ohmmeter scale is usually at the right end of the scale and reading increase towards the left?
Because the meter is actually measuring the current through the resistor, and the two quantities ... current and resistance ... are inversely proportional. So when the meter measures more current, it has to read less resistance, whereas higher resistance will result in less current. So the numbers for resistance have to be printed "backwards" on the meter scale.
What is the difference a multiple scale and a complex scale?
complex scale meters are meters that can be used for more than one function such as Amps, Resistance, or Voltage. Whereas multiple scale meters measure only one type of function.
How do you find out which soda pop is more acidic?
What you need is the pH scale measurements and the pH paper roll that tells you if the Soda is more Acidic than Neutral.
What is the difference between multiple scale and a complex scale?
complex scale meters are meters that can be used for more than one function such as Amps, Resistance, or Voltage. Whereas multiple scale meters measure only one type of function.
What is the difference between a multiple scale and complex scale?
complex scale meters are meters that can be used for more than one function such as Amps, Resistance, or Voltage. Whereas multiple scale meters measure only one type of function.
What is the Difference between a multiple scale and a complex scale?
complex scale meters are meters that can be used for more than one function such as Amps, Resistance, or Voltage. Whereas multiple scale meters measure only one type of function.
What was the Fujita scale based on and why?
The Fujita ("F") scale is based on the severity of the damage which is used to provide a basic wind speed estimate. It uses this technique because when the was created in 1971 we had no means of obtaining direct wind measurements from inside a tornado. More recently in 2007 the wind speed estimates have been adjusted to more accurately correspond with the damage levels. This is called the Enhanced Fujita ("EF") scale. Although it is now possible to get direct wind measurements from a tornado, such measurements are rare and difficult to obtain so that only a handful of tornadoes have such measurements taken. So damage must still be used as that primary means of rating tornadoes.
Why a megger fail to distinguish diff readings of d insulation resistance in d upper range of its scale?
More information is needed as to what your terminology of D insulation is.
Scientists usw this to determine a mineral's resistance to being scratch?
Scientists use the hardness test, and more specifically Mohs Hardness Scale, named after a Freidrich Mohs, a German mineralogist. Mohs Hardness Scale test can scale from 1 to 10, where 1 is softest and 10 is hardest.
What provides a more accurate description of matter than measurements?
There is no more accurate descriptions of matter than measurements. To get the description right make your measurements precise.
