Rsh of PMMC based Ammeter Calculator

✖Meter Current refers to the electric current that flows through a measuring instrument to indicate or measure the electrical quantity of interest in a circuit.ⓘ Meter Current [I_m]			+10% -10%
✖Meter Resistance refers to the inherent electrical resistance present within a measuring instrument. It is the resistance that the instrument itself presents to the flow of electric current.ⓘ Meter Resistance [R_m]			+10% -10%
✖Electric Current is the time rate of flow of charge through a cross sectional area.ⓘ Electric Current [I]			+10% -10%

✖Shunt Resistance refers to a low-resistance pathway connected in parallel with a measuring instrument to divert most of the current and enable accurate measurement.ⓘ Rsh of PMMC based Ammeter [R_sh]

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Rsh of PMMC based Ammeter Solution

STEP 0: Pre-Calculation Summary

Formula Used

Shunt Resistance = (Meter Current*Meter Resistance)/(Electric Current-Meter Current)
R_sh = (I_m*R_m)/(I-I_m)
This formula uses 4 Variables

Variables Used

Shunt Resistance - (Measured in Ohm) - Shunt Resistance refers to a low-resistance pathway connected in parallel with a measuring instrument to divert most of the current and enable accurate measurement.
Meter Current - (Measured in Ampere) - Meter Current refers to the electric current that flows through a measuring instrument to indicate or measure the electrical quantity of interest in a circuit.
Meter Resistance - (Measured in Ohm) - Meter Resistance refers to the inherent electrical resistance present within a measuring instrument. It is the resistance that the instrument itself presents to the flow of electric current.
Electric Current - (Measured in Ampere) - Electric Current is the time rate of flow of charge through a cross sectional area.

STEP 1: Convert Input(s) to Base Unit

Meter Current: 7.1 Ampere --> 7.1 Ampere No Conversion Required
Meter Resistance: 30 Ohm --> 30 Ohm No Conversion Required
Electric Current: 28.3 Ampere --> 28.3 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_sh = (I_m*R_m)/(I-I_m) --> (7.1*30)/(28.3-7.1)

Evaluating ... ...

R_sh = 10.0471698113208

STEP 3: Convert Result to Output's Unit

10.0471698113208 Ohm --> No Conversion Required

FINAL ANSWER

10.0471698113208 ≈ 10.04717 Ohm <-- Shunt Resistance

(Calculation completed in 00.004 seconds)

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Vellore Institute of Technology (VIT), Vellore

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< Ammeter Calculators

Rsh of PMMC based Ammeter

LaTeX Go Shunt Resistance = (Meter Current*Meter Resistance)/(Electric Current-Meter Current)

Resistance at switch position n for multi range Ammeter

LaTeX Go Resistance at nth Switch Position = (Resistance at Switch Position 1+Meter Resistance)/Nth Multiplying Factor

Nth resistance in multi-range Ammeter

LaTeX Go Nth Multiplier Resistance = Meter Resistance/(Nth Multiplying Factor-1)

m of PMMC based Ammeter

LaTeX Go Multiplying Power = 1+(Meter Resistance/Shunt Resistance)

Rsh of PMMC based Ammeter Formula

LaTeX Go

Shunt Resistance = (Meter Current*Meter Resistance)/(Electric Current-Meter Current)
R_sh = (I_m*R_m)/(I-I_m)

What is PMMC?

PMMC stands for Permanent Magnet Moving Coil. The instruments which use the permanent magnet for creating the stationary magnetic field between which the coil moves are known as permanent magnet moving coil or PMMC instruments.

How to Calculate Rsh of PMMC based Ammeter?

Rsh of PMMC based Ammeter calculator uses Shunt Resistance = (Meter Current*Meter Resistance)/(Electric Current-Meter Current) to calculate the Shunt Resistance, The Rsh of PMMC based Ammeter formula is defined as the shunt resistance connected in parallel with the PMMC meter movement. This shunt resistor allows the ammeter to measure higher currents than the PMMC meter movement alone can handle by diverting a significant portion of the current around the delicate meter movement. Shunt Resistance is denoted by R_sh symbol.

How to calculate Rsh of PMMC based Ammeter using this online calculator? To use this online calculator for Rsh of PMMC based Ammeter, enter Meter Current (I_m), Meter Resistance (R_m) & Electric Current (I) and hit the calculate button. Here is how the Rsh of PMMC based Ammeter calculation can be explained with given input values -> 1.386322 = (7.1*30)/(28.3-7.1).

FAQ

What is Rsh of PMMC based Ammeter?

The Rsh of PMMC based Ammeter formula is defined as the shunt resistance connected in parallel with the PMMC meter movement. This shunt resistor allows the ammeter to measure higher currents than the PMMC meter movement alone can handle by diverting a significant portion of the current around the delicate meter movement and is represented as R_sh = (I_m*R_m)/(I-I_m) or Shunt Resistance = (Meter Current*Meter Resistance)/(Electric Current-Meter Current). Meter Current refers to the electric current that flows through a measuring instrument to indicate or measure the electrical quantity of interest in a circuit, Meter Resistance refers to the inherent electrical resistance present within a measuring instrument. It is the resistance that the instrument itself presents to the flow of electric current & Electric Current is the time rate of flow of charge through a cross sectional area.

How to calculate Rsh of PMMC based Ammeter?

The Rsh of PMMC based Ammeter formula is defined as the shunt resistance connected in parallel with the PMMC meter movement. This shunt resistor allows the ammeter to measure higher currents than the PMMC meter movement alone can handle by diverting a significant portion of the current around the delicate meter movement is calculated using Shunt Resistance = (Meter Current*Meter Resistance)/(Electric Current-Meter Current). To calculate Rsh of PMMC based Ammeter, you need Meter Current (I_m), Meter Resistance (R_m) & Electric Current (I). With our tool, you need to enter the respective value for Meter Current, Meter Resistance & Electric Current 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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