Voltmeter Resistance Calculator

✖Voltmeter Range refers to the range of voltages that a voltmeter is capable of measuring. It represents the minimum and maximum voltage values that the voltmeter can accurately display.ⓘ Voltmeter Range [V_r]			+10% -10%
✖Current Magnitude is the magnitude of the rate of flow of charged particles.ⓘ Current Magnitude [I]			+10% -10%
✖Resistance is a measure of the opposition to current flow in an electrical circuit.ⓘ Resistance [R]			+10% -10%

✖Voltmeter Resistance is the internal resistance of a voltmeter, which is designed to be very high to ensure that the meter draws minimal current from the circuit being measured.ⓘ Voltmeter Resistance [R_v]

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Formula

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Voltmeter Resistance

Formula

`"R"_{"v"} = ("V"_{"r"}-"I"*"R")/"I"`

Example

`"57.46757Ω"=("200V"-"2.96A"*"10.1Ω")/"2.96A"`

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Voltmeter Resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Voltmeter Resistance = (Voltmeter Range-Current Magnitude*Resistance)/Current Magnitude
R_v = (V_r-I*R)/I
This formula uses 4 Variables

Variables Used

Voltmeter Resistance - (Measured in Ohm) - Voltmeter Resistance is the internal resistance of a voltmeter, which is designed to be very high to ensure that the meter draws minimal current from the circuit being measured.
Voltmeter Range - (Measured in Volt) - Voltmeter Range refers to the range of voltages that a voltmeter is capable of measuring. It represents the minimum and maximum voltage values that the voltmeter can accurately display.
Current Magnitude - (Measured in Ampere) - Current Magnitude is the magnitude of the rate of flow of charged particles.
Resistance - (Measured in Ohm) - Resistance is a measure of the opposition to current flow in an electrical circuit.

STEP 1: Convert Input(s) to Base Unit

Voltmeter Range: 200 Volt --> 200 Volt No Conversion Required
Current Magnitude: 2.96 Ampere --> 2.96 Ampere No Conversion Required
Resistance: 10.1 Ohm --> 10.1 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_v = (V_r-I*R)/I --> (200-2.96*10.1)/2.96

Evaluating ... ...

R_v = 57.4675675675676

STEP 3: Convert Result to Output's Unit

57.4675675675676 Ohm --> No Conversion Required

FINAL ANSWER

57.4675675675676 ≈ 57.46757 Ohm <-- Voltmeter Resistance

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electronics and Instrumentation » Measuring Instrument Circuits » Voltmeter » Voltmeter Specifications » Voltmeter Resistance

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Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

Shobhit Dimri has created this Calculator and 900+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< 16 Voltmeter Specifications Calculators

m of Moving Iron Voltmeter

Go Multiplying Power = sqrt(((Meter Internal Resistance+Series Resistance)^2+(Angular Frequency*Inductance)^2)/((Meter Internal Resistance)^2+(Angular Frequency*Inductance)^2))

Deflection Angle of ED Instrument (Voltmeter)

Go Deflection Angle = (Total Voltage^2*Mutual Inductance Change with Angle*cos(Phase Difference))/(Spring Constant*Impedance^2)

Voltage of Moving Iron Voltmeter

Go Voltage = Meter Current*sqrt((Meter Internal Resistance+Series Resistance)^2+(Angular Frequency*Inductance)^2)

Deflecting Torque of ED Instrument (Voltmeter)

Go Deflecting Torque = ((Total Voltage/Impedance)^2)*Mutual Inductance Change with Angle*cos(Phase Difference)

Voltage across Capacitance

Go Voltage = Source Voltage*(1-exp(-Time/(Resistance*Capacitance)))

Source Voltage

Go Source Voltage = Voltage*(1-exp(-Time/(Resistance*Capacitance)))

Nth resistance in multi-range voltmeter

Go Nth Multiplier Resistance = (Nth Multiplying Factor-Penultimate Voltage Multiplying Factor)*Meter Internal Resistance

Voltmeter Resistance

Go Voltmeter Resistance = (Voltmeter Range-Current Magnitude*Resistance)/Current Magnitude

Rs of PMMC based voltmeter

Go Multiplier Resistance = (Voltage/Full Scale Deflection Current)-Meter Internal Resistance

Range of Voltmeter

Go Voltmeter Range = Current Magnitude*(Voltmeter Resistance+Resistance)

Voltmeter current

Go Current Magnitude = (Voltmeter Range-Resistance)/Voltmeter Resistance

m of PMMC based voltmeter

Go Multiplying Power = 1+(Multiplier Resistance/Meter Internal Resistance)

Self-Capacitance of Coil

Go Coil Self Capacitance = Additional Capacitance-Voltmeter Capacitance

Additional Capacitance

Go Additional Capacitance = Coil Self Capacitance+Voltmeter Capacitance

Volts per Division

Go Volt per Division = Peak Voltage/Vertical Peak to Peak Division

Capacitance of Voltmeter

Go Voltmeter Capacitance = Charge/Capacitance

Voltmeter Resistance Formula

Voltmeter Resistance = (Voltmeter Range-Current Magnitude*Resistance)/Current Magnitude
R_v = (V_r-I*R)/I

What is basic range of a meter?

The input voltage that causes maximum deflection of the meter is known as the basic range of a meter. It occupies the lowest range on the range switch in the unamplified circuits.

How to Calculate Voltmeter Resistance?

Voltmeter Resistance calculator uses Voltmeter Resistance = (Voltmeter Range-Current Magnitude*Resistance)/Current Magnitude to calculate the Voltmeter Resistance, The Voltmeter Resistance formula is defined as internal resistance of voltmeter.Ideal voltmeter has infinite resistance so no current will flow. This is why voltmeters are placed in parallel to the circuit, not in series. Ammeter is placed in series however and has low resistance. Voltmeter Resistance is denoted by R_v symbol.

How to calculate Voltmeter Resistance using this online calculator? To use this online calculator for Voltmeter Resistance, enter Voltmeter Range (V_r), Current Magnitude (I) & Resistance (R) and hit the calculate button. Here is how the Voltmeter Resistance calculation can be explained with given input values -> -0.533368 = (200-2.96*10.1)/2.96.

FAQ

What is Voltmeter Resistance?

The Voltmeter Resistance formula is defined as internal resistance of voltmeter.Ideal voltmeter has infinite resistance so no current will flow. This is why voltmeters are placed in parallel to the circuit, not in series. Ammeter is placed in series however and has low resistance and is represented as R_v = (V_r-I*R)/I or Voltmeter Resistance = (Voltmeter Range-Current Magnitude*Resistance)/Current Magnitude. Voltmeter Range refers to the range of voltages that a voltmeter is capable of measuring. It represents the minimum and maximum voltage values that the voltmeter can accurately display, Current Magnitude is the magnitude of the rate of flow of charged particles & Resistance is a measure of the opposition to current flow in an electrical circuit.

How to calculate Voltmeter Resistance?

The Voltmeter Resistance formula is defined as internal resistance of voltmeter.Ideal voltmeter has infinite resistance so no current will flow. This is why voltmeters are placed in parallel to the circuit, not in series. Ammeter is placed in series however and has low resistance is calculated using Voltmeter Resistance = (Voltmeter Range-Current Magnitude*Resistance)/Current Magnitude. To calculate Voltmeter Resistance, you need Voltmeter Range (V_r), Current Magnitude (I) & Resistance (R). With our tool, you need to enter the respective value for Voltmeter Range, Current Magnitude & Resistance 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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