Current Limiting Resistance for Series Type Ohmmeter Solution

STEP 0: Pre-Calculation Summary
Formula Used
Current Limiting Resistance = Half Scale Resistance-((Current Full Scale Reading*Meter Resistance*Half Scale Resistance)/Voltage Source)
R1 = Rh-((If*Rm*Rh)/E)
This formula uses 5 Variables
Variables Used
Current Limiting Resistance - (Measured in Ohm) - Current Limiting Resistance refers to a resistor intentionally introduced into an electrical circuit to restrict the flow of current to a desired level.
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.
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.
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
Half Scale Resistance: 25 Ohm --> 25 Ohm No Conversion Required
Current Full Scale Reading: 0.2 Ampere --> 0.2 Ampere 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
R1 = Rh-((If*Rm*Rh)/E) --> 25-((0.2*75*25)/15.5)
Evaluating ... ...
R1 = 0.806451612903224
STEP 3: Convert Result to Output's Unit
0.806451612903224 Ohm --> No Conversion Required
FINAL ANSWER
0.806451612903224 0.806452 Ohm <-- Current Limiting Resistance
(Calculation completed in 00.004 seconds)

Credits

Creator Image
Created by Nikita Suryawanshi
Vellore Institute of Technology (VIT), Vellore
Nikita Suryawanshi has created this Calculator and 100+ more calculators!
Verifier Image
Verified by Payal Priya
Birsa Institute of Technology (BIT), Sindri
Payal Priya has verified this Calculator and 1900+ more calculators!

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)

Current Limiting Resistance for Series Type Ohmmeter Formula

​LaTeX ​Go
Current Limiting Resistance = Half Scale Resistance-((Current Full Scale Reading*Meter Resistance*Half Scale Resistance)/Voltage Source)
R1 = Rh-((If*Rm*Rh)/E)

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 Current Limiting Resistance = Half Scale Resistance-((Current Full Scale Reading*Meter Resistance*Half Scale Resistance)/Voltage Source) to calculate the Current Limiting Resistance, The Current Limiting Resistance for Series Type Ohmmeter formula is defined as a resistor strategically placed within the circuit to constrain the flow of current passing through the meter and the component under test. This resistance is pivotal for safeguarding both the meter and the circuitry being measured from potentially harmful levels of current. Current Limiting Resistance is denoted by R1 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 Half Scale Resistance (Rh), Current Full Scale Reading (If), Meter Resistance (Rm) & Voltage Source (E) and hit the calculate button. Here is how the Current Limiting Resistance for Series Type Ohmmeter calculation can be explained with given input values -> 22.90323 = 25-((0.2*75*25)/15.5).

FAQ

What is Current Limiting Resistance for Series Type Ohmmeter?
The Current Limiting Resistance for Series Type Ohmmeter formula is defined as a resistor strategically placed within the circuit to constrain the flow of current passing through the meter and the component under test. This resistance is pivotal for safeguarding both the meter and the circuitry being measured from potentially harmful levels of current and is represented as R1 = Rh-((If*Rm*Rh)/E) or Current Limiting Resistance = Half Scale Resistance-((Current Full Scale Reading*Meter Resistance*Half Scale Resistance)/Voltage Source). 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, 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, 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 Current Limiting Resistance for Series Type Ohmmeter?
The Current Limiting Resistance for Series Type Ohmmeter formula is defined as a resistor strategically placed within the circuit to constrain the flow of current passing through the meter and the component under test. This resistance is pivotal for safeguarding both the meter and the circuitry being measured from potentially harmful levels of current is calculated using Current Limiting Resistance = Half Scale Resistance-((Current Full Scale Reading*Meter Resistance*Half Scale Resistance)/Voltage Source). To calculate Current Limiting Resistance for Series Type Ohmmeter, you need Half Scale Resistance (Rh), Current Full Scale Reading (If), Meter Resistance (Rm) & Voltage Source (E). With our tool, you need to enter the respective value for Half Scale Resistance, Current Full Scale Reading, 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.
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!