Nikita Suryawanshi
Vellore Institute of Technology (VIT), Vellore
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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
R<sub>s</sub> for DC Operation (Half Wave)
Rs=(RMS value*Sensitivity)-Rm-R diode GO
R<sub>sh</sub> of PMMC based Ammeter
Rsh=(Im*Rm)/(Current (measured)-Im) GO
Output voltage V<sub>o</sub> of a difference amplifier
Output voltage =(R2/R1)*(vl2 -vl1) GO
R<sub>s</sub> of PMMC based voltmeter
Rs=(Voltage (full range)/Im)-Rm GO
m of PMMC based Ammeter
Multiplying Power=(1+Rm)/Rsh GO
m of PMMC based voltmeter
Multiplying Power=1+(Rs/Rm) GO
Output voltage V<sub>01</sub> of a difference amplifier
v01=-(R2/R1)*vl1 GO
Output voltage V<sub>02</sub> of a difference amplifier
v02=(R2/R1)*vl2 GO

1 Other formulas that calculate the same Output

Value of I<sub>m</sub>
Im=(Voltage*Unknown Resistance)/(Resistance 1*Rm+Unknown Resistance*Resistance 1+Unknown Resistance*Rm) GO

Value of I<sub>m</sub> Formula

Im=Voltage (total)/(0.1*(Rm+R2))
Iₘ=V/(0.1*(Rₘ+R2))
More formulas
Value of I'<sub>m</sub> GO
Value of R<sub>2</sub> GO
Magnitude of Voltage GO
Phase Angle GO

What is the total resistance in a multirange potentiometer?

The total resistance is the sum of the resistance of the main dial and that of the slide wire. The main dial is made of 15 steps of 10 ohms each (total 150 ohms) and the slide wire has a resistance of 10 ohms. The two ranges are obtained by using R1 and R2.

How to Calculate Value of Im?

Value of Im calculator uses Im=Voltage (total)/(0.1*(Rm+R2)) to calculate the Im, The Value of Im formula is used to find the value of current through the meter in an x1 range multirange potentiometer. Im and is denoted by Iₘ symbol.

How to calculate Value of Im using this online calculator? To use this online calculator for Value of Im, enter Voltage (total) (V), Rm (Rₘ) and R2 (R2) and hit the calculate button. Here is how the Value of Im calculation can be explained with given input values -> 9.52381 = 100/(0.1*(5+100)).

FAQ

What is Value of Im?
The Value of Im formula is used to find the value of current through the meter in an x1 range multirange potentiometer and is represented as Iₘ=V/(0.1*(Rₘ+R2)) or Im=Voltage (total)/(0.1*(Rm+R2)). Voltage (total) is the amount of total potential difference across the network. In this case, it is usually the voltage difference across the voltmeter, Rm is the internal resistance of the coil in PMMC instrument and R2 is the value of resistor 2 variable.
How to calculate Value of Im?
The Value of Im formula is used to find the value of current through the meter in an x1 range multirange potentiometer is calculated using Im=Voltage (total)/(0.1*(Rm+R2)). To calculate Value of Im, you need Voltage (total) (V), Rm (Rₘ) and R2 (R2). With our tool, you need to enter the respective value for Voltage (total), Rm and R2 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 Im?
In this formula, Im uses Voltage (total), Rm and R2. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Im=(Voltage*Unknown Resistance)/(Resistance 1*Rm+Unknown Resistance*Resistance 1+Unknown Resistance*Rm)
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