m of PMMC based Ammeter Calculator

Category	Engineering ↺
Engineering	Electronics and Instrumentation ↺
Electronics-And-Instrumentation	Electrical and Electronics Instrumentation (EEI) ↺
Electrical-And-Electronics-Instrumentation-(Eei)	Permanent Magnet Moving Coil ↺

✖Rm is the internal resistance of the coil in PMMC instrumentⓘ Rm [Rₘ]			+10% -10%
✖Rsh is the shunt resistance in the coilⓘ Rsh [Rₛₕ]			+10% -10%

✖Multiplying Power is the multiplying power of the shuntⓘ m of PMMC based Ammeter [m]

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Nikita Suryawanshi

Vellore Institute of Technology (VIT), Vellore

Nikita Suryawanshi has created this Calculator and 100+ more calculators!

Payal Priya

Birsa Institute of Technology (BIT), Sindri

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< 11 Other formulas that you can solve using the same Inputs

m of Moving Iron Ammeter

Multiplying Power=(Rm/Rsh)*sqrt((1+((Omega*Inductance)/Rm)^2)/(1+((Omega*Shunt Inductance)/Rsh)^2)) GO

m of Moving Iron Voltmeter

Multiplying Power=sqrt(((Rm+Rs)^2+(Omega*Inductance)^2)/((Rm)^2+(Omega*Inductance)^2)) GO

Voltage of Moving Iron Voltmeter

Meter Voltage=Im*sqrt((Rm+Rs)^2+(Omega*Inductance)^2) GO

Rs for AC Operation (Full Wave)

Rs=(RMS value*Sensitivity (ac))-Rm-(2*R diode) GO

Rs for AC Operation (Half Wave)

Rs=(RMS value*Sensitivity (ac))-Rm-R diode GO

Rs for DC Operation (Full Wave)

Rs=(RMS value*Sensitivity)-Rm-(2*R diode) GO

Rs for DC Operation (Half Wave)

Rs=(RMS value*Sensitivity)-Rm-R diode GO

Rsh of PMMC based Ammeter

Rsh=(Im*Rm)/(Current (measured)-Im) GO

Time Constant of Moving Iron Ammeter

Time Constant=Shunt Inductance/Rsh GO

Rs of PMMC based voltmeter

Rs=(Voltage (full range)/Im)-Rm GO

m of PMMC based voltmeter

Multiplying Power=1+(Rs/Rm) GO

< 3 Other formulas that calculate the same Output

m of Moving Iron Ammeter

Multiplying Power=(Rm/Rsh)*sqrt((1+((Omega*Inductance)/Rm)^2)/(1+((Omega*Shunt Inductance)/Rsh)^2)) GO

m of Moving Iron Voltmeter

Multiplying Power=sqrt(((Rm+Rs)^2+(Omega*Inductance)^2)/((Rm)^2+(Omega*Inductance)^2)) GO

m of PMMC based voltmeter

Multiplying Power=1+(Rs/Rm) GO

m of PMMC based Ammeter Formula

Multiplying Power=(1+Rm)/Rsh
m=(1+Rₘ)/Rₛₕ

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Rs of PMMC based voltmeter GO

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nth resistance in multi-range voltmeter GO

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 a permanent magnet moving coil or PMMC instruments.

How to Calculate m of PMMC based Ammeter?

m of PMMC based Ammeter calculator uses Multiplying Power=(1+Rm)/Rsh to calculate the Multiplying Power, The m of PMMC based ammeter formula is defined as the multiplying power of the PMMC. It can also be calculated by (I/Iₘ). Multiplying Power and is denoted by m symbol.

How to calculate m of PMMC based Ammeter using this online calculator? To use this online calculator for m of PMMC based Ammeter, enter Rm (Rₘ) and Rsh (Rₛₕ) and hit the calculate button. Here is how the m of PMMC based Ammeter calculation can be explained with given input values -> 300 = (1+5)/0.02.

FAQ

What is m of PMMC based Ammeter?

The m of PMMC based ammeter formula is defined as the multiplying power of the PMMC. It can also be calculated by (I/Iₘ) and is represented as m=(1+Rₘ)/Rₛₕ or Multiplying Power=(1+Rm)/Rsh. Rm is the internal resistance of the coil in PMMC instrument and Rsh is the shunt resistance in the coil.

How to calculate m of PMMC based Ammeter?

The m of PMMC based ammeter formula is defined as the multiplying power of the PMMC. It can also be calculated by (I/Iₘ) is calculated using Multiplying Power=(1+Rm)/Rsh. To calculate m of PMMC based Ammeter, you need Rm (Rₘ) and Rsh (Rₛₕ). With our tool, you need to enter the respective value for Rm and Rsh 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 Multiplying Power?

In this formula, Multiplying Power uses Rm and Rsh. We can use 3 other way(s) to calculate the same, which is/are as follows -

Multiplying Power=1+(Rs/Rm)
Multiplying Power=(Rm/Rsh)*sqrt((1+((Omega*Inductance)/Rm)^2)/(1+((Omega*Shunt Inductance)/Rsh)^2))
Multiplying Power=sqrt(((Rm+Rs)^2+(Omega*Inductance)^2)/((Rm)^2+(Omega*Inductance)^2))

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