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At which end of the ohms scale are resistance measurement more reliable the zero end or the infinity end?
Wiki User
∙ 14y ago
On an analog ohmmeter, measurements are more precise and more accurate at the zero end of the scale.
Wiki User
∙ 14y ago
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Why the scale of an ohm meter is non linear?
V = I*R R = V/I If we fix the voltage at 1 then R = I^-1 The change in the resistance scale is the derivative R dr = I^-1 di R dr = -I^-2 R dr = -1/(I^2) Explanation: The change in the resistance measurement decreases by the inverse of the current squared.
When measuring resistance a reading of ol on the dmm indicates?
probably overload. which means whatever is being measured is beyond the range of the current scale.
What resistance value is add to convert a galvanometer into a voltmeter?
It depends on the resistance of the galvanometer and the current required to reach full scale. A 100 ohm meter requiring 1 milliampere would require 99.9 KOhms in series to become a 100 volt voltmeter.
What is ammeter sensitivity?
Ammeter sensitivity can be determined by a change of scale for the ammeter which would introduce higher or lower resistance values depending on the reading required. A higher sensitivity for lower values of ampacity would require higher resistance in the measuring circuitry. Use Ohm's law to verify.
How do you measure a resistor using multimeter?
a multimeter probably has a Ohm meter as well. If yes, use it and make sure you have the correct scale adjusted. If there is no Ohm meter you should calculate the resistance using Ohms Law. So if you use your multimeter as an Amp meter (in series with the unknown resistor) and you apply a know voltage across you should be able to calculate the resistance by dividing the voltage you applied by the current you meassured (R=v/I) ANSWER: 1 make sure ther is no external power connected 2 short the leads together and adjust for zero reading on the meter. This step is necessary to eliminate the internal battery drifting with time. Unlike voltage and amps reading the scaling of the meter is not important to begin with since a peg meter or a overflow will not destroy the meter immediately but do change the scale to get maximum deflection or digital display.That it
At what end of the ohm's scale are resistance measurements more reliable?
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.
Is age an interval or ratio scale of measurement?
It is a ratio scale of measurement.
What is the resistance scale on an analog multimeter often termed?
Resistance is measured in ohms, so some refer to the resistance scale as the ohms scale.
Why is the Celsius temperature scale NOT a metric measurement?
The Celsius temperature scale is NOT a metric measurement, because degrees Celsius is parallel measurement of Kelvin, and Kelvin is not a metric measurement.
What is the highest measurement on the Beaufort scale?
The Highest measurement of Beaufort scale is 12, which refers to Hurricane-force.
How do you convert galvanometer to an ohmmeter?
"An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current."The unit of measurement for resistance is ohms (Ω).It is useful device for rapid measurement of resistance. It is consist of galvanometer and adjustable resistance Rs of known value and a cell connected in series. The resistance R to be measured is connected between the terminals.The series resistance Rs is so adjusted that when the terminals are short circuited i.e., when R = 0, the galvanometer gives full scale deflection. So the extreme graduation of the usual scale the galvanometer is marked 0 for resistance measurement. When terminals are not joined no current passes through the galvanometer and its deflection will be zero . Thus zero of the scale marked as infinity. . When R is not infinite , the galvanometer deflects to some intermediate point depending on the value of R scale can be calibrated to read the resistance directly.
How does the Richter scale know if there is an aftershock?
The Richter scale does not know anything. The Richter scale is a measurement of the magnitude of an earthquake. The numbers of the scale represent a quantifiable measurement or range of the strength.
What is the measurement scale in meters?
The measurement scale in meters is a unit of length in the metric system. It is used to measure distances, lengths, and heights. It is represented by the symbol "m".
What is the highest measurement you have to be to go on the highest measurement ride?
The Richter scale is the highest measurement
Is a blood glucose sliding scale a ratio-scale measurement?
no
What is a intensity scale?
Mercalli is a scale for the measurement of earthquake intensities.
What measurement scale has an absolute zero point?
The Kelvin Scale
