m of PMMC based voltmeter Calculator

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

✖Rs is the value of series resistance attached in the pmmc based voltmeterⓘ Rs [Rₛ]			+10% -10%
✖Rm is the internal resistance of the coil in PMMC instrumentⓘ Rm [Rₘ]			+10% -10%

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

Payal Priya has verified this Calculator and 500+ more calculators!

< 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

Value of R1

Resistance 1=Resistance (half)-((Current (fs)*Rm*Resistance (half))/Voltage) 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

Rs of PMMC based voltmeter

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

m of PMMC based Ammeter

Multiplying Power=(1+Rm)/Rsh 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 Ammeter

Multiplying Power=(1+Rm)/Rsh GO

m of PMMC based voltmeter Formula

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

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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.

What are Voltmeter multipliers?

Voltmeter multipliers are PMMC based voltmeters that have a resistance connected in series. It limits the current through the meter and does not allow the value to exceed set value for a full scale deflection. This protects meter from damage.

How to Calculate m of PMMC based voltmeter?

m of PMMC based voltmeter calculator uses Multiplying Power=1+(Rs/Rm) to calculate the Multiplying Power, The m of PMMC based voltmeter isthe multiplying power of pmmc for voltmeter multipliers which is used for voltage measurement. Multiplying Power and is denoted by m symbol.

How to calculate m of PMMC based voltmeter using this online calculator? To use this online calculator for m of PMMC based voltmeter, enter Rs (Rₛ) and Rm (Rₘ) and hit the calculate button. Here is how the m of PMMC based voltmeter calculation can be explained with given input values -> 3 = 1+(10/5).

FAQ

What is m of PMMC based voltmeter?

The m of PMMC based voltmeter isthe multiplying power of pmmc for voltmeter multipliers which is used for voltage measurement and is represented as m=1+(Rₛ/Rₘ) or Multiplying Power=1+(Rs/Rm). Rs is the value of series resistance attached in the pmmc based voltmeter and Rm is the internal resistance of the coil in PMMC instrument.

How to calculate m of PMMC based voltmeter?

The m of PMMC based voltmeter isthe multiplying power of pmmc for voltmeter multipliers which is used for voltage measurement is calculated using Multiplying Power=1+(Rs/Rm). To calculate m of PMMC based voltmeter, you need Rs (Rₛ) and Rm (Rₘ). With our tool, you need to enter the respective value for Rs and Rm 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 Rs and Rm. We can use 3 other way(s) to calculate the same, which is/are as follows -

Multiplying Power=(1+Rm)/Rsh
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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