Shunt Adjustable Resistance for Series Type Ohmmeter Solution

STEP 0: Pre-Calculation Summary
Formula Used
Zero Adjusting Resistance = (Current Full Scale Reading*Half Scale Resistance*Meter Resistance)/(Voltage Source-(Current Full Scale Reading*Half Scale Resistance))
R2 = (If*Rh*Rm)/(E-(If*Rh))
This formula uses 5 Variables
Variables Used
Zero Adjusting Resistance - (Measured in Ohm) - Zero Adjusting Resistance refers to a variable resistor used to calibrate or adjust the zero reading of a measuring instrument.
Current Full Scale Reading - (Measured in Ampere) - Current Full Scale Reading represents the maximum current that the ohmmeter will pass through the resistor when it's being measured at its highest resistance value.
Half Scale Resistance - (Measured in Ohm) - Half Scale Resistance refers to the resistance value halfway between the maximum and minimum resistance of a variable resistor or potentiometer, typically used to calibrate or set reference points.
Meter Resistance - (Measured in Ohm) - Meter Resistance refers to the internal resistance of a measuring instrument. This resistance is inherent to the design of the instrument and affects the accuracy of measurements made by the device.
Voltage Source - (Measured in Volt) - Voltage Source refers to as a fundamental element that supplies electrical energy to a circuit.
STEP 1: Convert Input(s) to Base Unit
Current Full Scale Reading: 0.2 Ampere --> 0.2 Ampere No Conversion Required
Half Scale Resistance: 25 Ohm --> 25 Ohm No Conversion Required
Meter Resistance: 75 Ohm --> 75 Ohm No Conversion Required
Voltage Source: 15.5 Volt --> 15.5 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
R2 = (If*Rh*Rm)/(E-(If*Rh)) --> (0.2*25*75)/(15.5-(0.2*25))
Evaluating ... ...
R2 = 35.7142857142857
STEP 3: Convert Result to Output's Unit
35.7142857142857 Ohm --> No Conversion Required
FINAL ANSWER
35.7142857142857 35.71429 Ohm <-- Zero Adjusting Resistance
(Calculation completed in 00.004 seconds)

Credits

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Created by Nikita Suryawanshi
Vellore Institute of Technology (VIT), Vellore
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Series Type Calculators

Half Scale Resistance for Series Type Ohmmeter
​ LaTeX ​ Go Half Scale Resistance = (Voltage Source*Zero Adjusting Resistance)/(Current Full Scale Reading*Zero Adjusting Resistance+Current Full Scale Reading*Meter Resistance)
Shunt Adjustable Resistance for Series Type Ohmmeter
​ LaTeX ​ Go Zero Adjusting Resistance = (Current Full Scale Reading*Half Scale Resistance*Meter Resistance)/(Voltage Source-(Current Full Scale Reading*Half Scale Resistance))
Current Limiting Resistance for Series Type Ohmmeter
​ LaTeX ​ Go Current Limiting Resistance = Half Scale Resistance-((Current Full Scale Reading*Meter Resistance*Half Scale Resistance)/Voltage Source)

Shunt Adjustable Resistance for Series Type Ohmmeter Formula

​LaTeX ​Go
Zero Adjusting Resistance = (Current Full Scale Reading*Half Scale Resistance*Meter Resistance)/(Voltage Source-(Current Full Scale Reading*Half Scale Resistance))
R2 = (If*Rh*Rm)/(E-(If*Rh))

How to mark infinity reading?

To mark infinity reading on the scale, the terminals are opened and Rx is made infinite. Now, no current is flowing in the circuit and there is no deflection in the pointer.

How to Calculate Shunt Adjustable Resistance for Series Type Ohmmeter?

Shunt Adjustable Resistance for Series Type Ohmmeter calculator uses Zero Adjusting Resistance = (Current Full Scale Reading*Half Scale Resistance*Meter Resistance)/(Voltage Source-(Current Full Scale Reading*Half Scale Resistance)) to calculate the Zero Adjusting Resistance, The Shunt Adjustable Resistance for Series Type Ohmmeter formula is defined as a variable resistor (shunt resistor) connected in parallel with the meter movement and the unknown resistance being measured. This resistor is adjustable and allows for fine-tuning the sensitivity of the ohmmeter across its measurement range. It is also known as zero adjusting resistance. Zero Adjusting Resistance is denoted by R2 symbol.

How to calculate Shunt Adjustable Resistance for Series Type Ohmmeter using this online calculator? To use this online calculator for Shunt Adjustable Resistance for Series Type Ohmmeter, enter Current Full Scale Reading (If), Half Scale Resistance (Rh), Meter Resistance (Rm) & Voltage Source (E) and hit the calculate button. Here is how the Shunt Adjustable Resistance for Series Type Ohmmeter calculation can be explained with given input values -> 3.095238 = (0.2*25*75)/(15.5-(0.2*25)).

FAQ

What is Shunt Adjustable Resistance for Series Type Ohmmeter?
The Shunt Adjustable Resistance for Series Type Ohmmeter formula is defined as a variable resistor (shunt resistor) connected in parallel with the meter movement and the unknown resistance being measured. This resistor is adjustable and allows for fine-tuning the sensitivity of the ohmmeter across its measurement range. It is also known as zero adjusting resistance and is represented as R2 = (If*Rh*Rm)/(E-(If*Rh)) or Zero Adjusting Resistance = (Current Full Scale Reading*Half Scale Resistance*Meter Resistance)/(Voltage Source-(Current Full Scale Reading*Half Scale Resistance)). Current Full Scale Reading represents the maximum current that the ohmmeter will pass through the resistor when it's being measured at its highest resistance value, Half Scale Resistance refers to the resistance value halfway between the maximum and minimum resistance of a variable resistor or potentiometer, typically used to calibrate or set reference points, Meter Resistance refers to the internal resistance of a measuring instrument. This resistance is inherent to the design of the instrument and affects the accuracy of measurements made by the device & Voltage Source refers to as a fundamental element that supplies electrical energy to a circuit.
How to calculate Shunt Adjustable Resistance for Series Type Ohmmeter?
The Shunt Adjustable Resistance for Series Type Ohmmeter formula is defined as a variable resistor (shunt resistor) connected in parallel with the meter movement and the unknown resistance being measured. This resistor is adjustable and allows for fine-tuning the sensitivity of the ohmmeter across its measurement range. It is also known as zero adjusting resistance is calculated using Zero Adjusting Resistance = (Current Full Scale Reading*Half Scale Resistance*Meter Resistance)/(Voltage Source-(Current Full Scale Reading*Half Scale Resistance)). To calculate Shunt Adjustable Resistance for Series Type Ohmmeter, you need Current Full Scale Reading (If), Half Scale Resistance (Rh), Meter Resistance (Rm) & Voltage Source (E). With our tool, you need to enter the respective value for Current Full Scale Reading, Half Scale Resistance, Meter Resistance & Voltage Source and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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