Current Limiting Resistance for Series Type Ohmmeter Solution

STEP 0: Pre-Calculation Summary
Formula Used
Series Resistance = Unknown Series Resistance-((Current Full Scale Reading*Resistance of Series Meter*Unknown Series Resistance)/Voltage Source Series)
Rs2 = Rx2-((If2*Rm2*Rx2)/E2)
This formula uses 5 Variables
Variables Used
Series Resistance - (Measured in Ohm) - Series Resistance is the current limiting resistance in an ohmmeter.
Unknown Series Resistance - (Measured in Ohm) - Unknown Series Resistance is the value of the unknown resistance connected for measurement.
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.
Resistance of Series Meter - (Measured in Ohm) - Resistance of Series Meter is an instrument resistance.
Voltage Source Series - (Measured in Volt) - Voltage Source Series is the value of the voltage applied in the series ohmmeter.
STEP 1: Convert Input(s) to Base Unit
Unknown Series Resistance: 26 Ohm --> 26 Ohm No Conversion Required
Current Full Scale Reading: 0.2 Ampere --> 0.2 Ampere No Conversion Required
Resistance of Series Meter: 2 Ohm --> 2 Ohm No Conversion Required
Voltage Source Series: 0.5 Volt --> 0.5 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Rs2 = Rx2-((If2*Rm2*Rx2)/E2) --> 26-((0.2*2*26)/0.5)
Evaluating ... ...
Rs2 = 5.2
STEP 3: Convert Result to Output's Unit
5.2 Ohm --> No Conversion Required
FINAL ANSWER
5.2 Ohm <-- Series Resistance
(Calculation completed in 00.004 seconds)

Credits

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

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

Current Limiting Resistance for Series Type Ohmmeter Formula

Series Resistance = Unknown Series Resistance-((Current Full Scale Reading*Resistance of Series Meter*Unknown Series Resistance)/Voltage Source Series)
Rs2 = Rx2-((If2*Rm2*Rx2)/E2)

How to mark zero reading?

To mark zero reading on the scale, the terminals are shorted and Rx is made zero. Now, maximum current is flowing in the circuit and R2 is adjusted till D'Arsonal movement indicates full-scale current.

How to Calculate Current Limiting Resistance for Series Type Ohmmeter?

Current Limiting Resistance for Series Type Ohmmeter calculator uses Series Resistance = Unknown Series Resistance-((Current Full Scale Reading*Resistance of Series Meter*Unknown Series Resistance)/Voltage Source Series) to calculate the Series Resistance, Current Limiting Resistance for Series Type Ohmmeter is directly dependent on the value of resistance at half scale. It is used to limit the current flowing through basic meter. Series Resistance is denoted by Rs2 symbol.

How to calculate Current Limiting Resistance for Series Type Ohmmeter using this online calculator? To use this online calculator for Current Limiting Resistance for Series Type Ohmmeter, enter Unknown Series Resistance (Rx2), Current Full Scale Reading (If2), Resistance of Series Meter (Rm2) & Voltage Source Series (E2) and hit the calculate button. Here is how the Current Limiting Resistance for Series Type Ohmmeter calculation can be explained with given input values -> 5.2 = 26-((0.2*2*26)/0.5).

FAQ

What is Current Limiting Resistance for Series Type Ohmmeter?
Current Limiting Resistance for Series Type Ohmmeter is directly dependent on the value of resistance at half scale. It is used to limit the current flowing through basic meter and is represented as Rs2 = Rx2-((If2*Rm2*Rx2)/E2) or Series Resistance = Unknown Series Resistance-((Current Full Scale Reading*Resistance of Series Meter*Unknown Series Resistance)/Voltage Source Series). Unknown Series Resistance is the value of the unknown resistance connected for measurement, 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, Resistance of Series Meter is an instrument resistance & Voltage Source Series is the value of the voltage applied in the series ohmmeter.
How to calculate Current Limiting Resistance for Series Type Ohmmeter?
Current Limiting Resistance for Series Type Ohmmeter is directly dependent on the value of resistance at half scale. It is used to limit the current flowing through basic meter is calculated using Series Resistance = Unknown Series Resistance-((Current Full Scale Reading*Resistance of Series Meter*Unknown Series Resistance)/Voltage Source Series). To calculate Current Limiting Resistance for Series Type Ohmmeter, you need Unknown Series Resistance (Rx2), Current Full Scale Reading (If2), Resistance of Series Meter (Rm2) & Voltage Source Series (E2). With our tool, you need to enter the respective value for Unknown Series Resistance, Current Full Scale Reading, Resistance of Series Meter & Voltage Source Series and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Series Resistance?
In this formula, Series Resistance uses Unknown Series Resistance, Current Full Scale Reading, Resistance of Series Meter & Voltage Source Series. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Series Resistance = Current Full Scale Reading*Unknown Series Resistance*Resistance of Series Meter/(Voltage Source Series-(Current Full Scale Reading*Unknown Series Resistance))
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