Nth resistance in multi-range voltmeter Solution

STEP 0: Pre-Calculation Summary
Formula Used
Nth resistance = (Nth m-(n-1)th m)*Rm
Rₙ = (mₙ-mₙ₋₁)*Rₘ
This formula uses 4 Variables
Variables Used
Nth resistance - (Measured in Ohm) - Nth resistance is the nth number of resistance in multirange pmmc ammeter.
Nth m - Nth m is the multiplying power of coil associated with the nth resistor in multi range ammeter.
(n-1)th m - (n-1)th m gives the value of multiplying power that is effective for the (n-1)th resistance in series.
Rm - (Measured in Ohm) - Rm is the value of the Ayrton shunt.
STEP 1: Convert Input(s) to Base Unit
Nth m: 5 --> No Conversion Required
(n-1)th m: 3 --> No Conversion Required
Rm: 800 Ohm --> 800 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Rₙ = (mₙ-mₙ₋₁)*Rₘ --> (5-3)*800
Evaluating ... ...
Rₙ = 1600
STEP 3: Convert Result to Output's Unit
1600 Ohm --> No Conversion Required
FINAL ANSWER
1600 Ohm <-- Nth resistance
(Calculation completed in 00.004 seconds)

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Vellore Institute of Technology (VIT), Vellore
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9 Permanent Magnet Moving Coil Calculators

Angle of deflection of PMMC
Go Angle of Deflection In Magnetic Coil = (Number of Turns*Flux Density of Coil*Length*Width*Current in Coil)/K (spring)
Deflecting torque of PMMC instrument
Go Torque Permanent Magnet = Number of Turns*Flux Density of Coil*Length*Width*Current in Coil
Rsh of PMMC based Ammeter
Go Rsh PMMC = (Im*RM_PERMANENT_MAGNET)/(Current (measured)-Im)
Rs of PMMC based voltmeter
Go RS PMMC = (Voltage (full range)/Im)-RM_PERMANENT_MAGNET
Resistance at switch position 'n' for multi range Ammeter
Go Nth Resistance At Switch Position = (Rsh1+Rm)/Nth m
Nth resistance in multi-range voltmeter
Go Nth resistance = (Nth m-(n-1)th m)*Rm
m of PMMC based Ammeter
Go Multiplying Power 1 = (1+RM_PERMANENT_MAGNET)/Rsh
m of PMMC based voltmeter
Go Multiplying Power 2 = 1+(RS/RM_PERMANENT_MAGNET)
Nth resistance in multi-range Ammeter
Go Nth resistance = Rm/(Nth m-1)

Nth resistance in multi-range voltmeter Formula

Nth resistance = (Nth m-(n-1)th m)*Rm
Rₙ = (mₙ-mₙ₋₁)*Rₘ

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 is multi range voltmeter?

The basic idea of a multi-range voltmeter is to make the meter usable over a wide range of voltages. In order to accomplish this, each range must utilize a different series resistance.

How to Calculate Nth resistance in multi-range voltmeter?

Nth resistance in multi-range voltmeter calculator uses Nth resistance = (Nth m-(n-1)th m)*Rm to calculate the Nth resistance, The Nth resistance in multi-range voltmeter calculates the value of Rₙ for its specified mₙ, used for range extension. Nth resistance is denoted by Rₙ symbol.

How to calculate Nth resistance in multi-range voltmeter using this online calculator? To use this online calculator for Nth resistance in multi-range voltmeter, enter Nth m (mₙ), (n-1)th m (mₙ₋₁) & Rm (Rₘ) and hit the calculate button. Here is how the Nth resistance in multi-range voltmeter calculation can be explained with given input values -> 1600 = (5-3)*800.

FAQ

What is Nth resistance in multi-range voltmeter?
The Nth resistance in multi-range voltmeter calculates the value of Rₙ for its specified mₙ, used for range extension and is represented as Rₙ = (mₙ-mₙ₋₁)*Rₘ or Nth resistance = (Nth m-(n-1)th m)*Rm. Nth m is the multiplying power of coil associated with the nth resistor in multi range ammeter, (n-1)th m gives the value of multiplying power that is effective for the (n-1)th resistance in series & Rm is the value of the Ayrton shunt.
How to calculate Nth resistance in multi-range voltmeter?
The Nth resistance in multi-range voltmeter calculates the value of Rₙ for its specified mₙ, used for range extension is calculated using Nth resistance = (Nth m-(n-1)th m)*Rm. To calculate Nth resistance in multi-range voltmeter, you need Nth m (mₙ), (n-1)th m (mₙ₋₁) & Rm (Rₘ). With our tool, you need to enter the respective value for Nth m, (n-1)th m & 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 Nth resistance?
In this formula, Nth resistance uses Nth m, (n-1)th m & Rm. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Nth resistance = Rm/(Nth m-1)
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