Wattmeter Reading Calculator

✖Pressure Coil Voltage is typically proportional to the current being measured, generating a magnetic field that interacts with the current-carrying conductor for power measurement.ⓘ Pressure Coil Voltage [V_wp]			+10% -10%
✖Iron Loss refers to the electrical power dissipated as heat in the iron core of the instrument. It occurs due to magnetic hysteresis and eddy currents induced in the core material.ⓘ Iron Loss [P_i]			+10% -10%
✖Potential Difference is the external work needed to bring a charge from one location to another location in an electric field.ⓘ Potential Difference [V]			+10% -10%

✖Wattmeter Reading is the value measured by an instrument that is used for measuring the electric power (or the supply rate of electrical energy) in watts of any given circuit.ⓘ Wattmeter Reading [W_r]

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Wattmeter Reading Solution

STEP 0: Pre-Calculation Summary

Formula Used

Wattmeter Reading = (Pressure Coil Voltage*Iron Loss)/(Potential Difference)
W_r = (V_wp*P_i)/(V)
This formula uses 4 Variables

Variables Used

Wattmeter Reading - (Measured in Watt) - Wattmeter Reading is the value measured by an instrument that is used for measuring the electric power (or the supply rate of electrical energy) in watts of any given circuit.
Pressure Coil Voltage - (Measured in Volt) - Pressure Coil Voltage is typically proportional to the current being measured, generating a magnetic field that interacts with the current-carrying conductor for power measurement.
Iron Loss - (Measured in Watt) - Iron Loss refers to the electrical power dissipated as heat in the iron core of the instrument. It occurs due to magnetic hysteresis and eddy currents induced in the core material.
Potential Difference - (Measured in Volt) - Potential Difference is the external work needed to bring a charge from one location to another location in an electric field.

STEP 1: Convert Input(s) to Base Unit

Pressure Coil Voltage: 10.25 Volt --> 10.25 Volt No Conversion Required
Iron Loss: 9.4 Watt --> 9.4 Watt No Conversion Required
Potential Difference: 18.4 Volt --> 18.4 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

W_r = (V_wp*P_i)/(V) --> (10.25*9.4)/(18.4)

Evaluating ... ...

W_r = 5.23641304347826

STEP 3: Convert Result to Output's Unit

5.23641304347826 Watt --> No Conversion Required

FINAL ANSWER

5.23641304347826 ≈ 5.236413 Watt <-- Wattmeter Reading

(Calculation completed in 00.020 seconds)

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Credits

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

Urvi Rathod has verified this Calculator and 1900+ more calculators!

< Wattmeter Circuit Calculators

Power using Two Wattmeter Method

LaTeX Go Total Power = sqrt(3)*Total Phase Voltage*One Phase Current*cos(Phase Angle)

DC Power (in Voltage Terms)

LaTeX Go Total Power = Total Voltage*Total Current-(Total Voltage^2/Voltmeter Resistance)

DC Power (in Current Terms)

LaTeX Go Total Power = Total Voltage*Total Current-Total Current^2*Ammeter Resistance

Total Power using phi Angle

LaTeX Go Total Power = 3*Total Phase Voltage*Total Phase Current*cos(Phase Angle)

Wattmeter Reading Formula

LaTeX Go

Wattmeter Reading = (Pressure Coil Voltage*Iron Loss)/(Potential Difference)
W_r = (V_wp*P_i)/(V)

what is a wattmeter?

A wattmeter is an electrical device used to measure the real power consumed by an electrical circuit. It typically measures voltage and current to calculate power in watts.

How to Calculate Wattmeter Reading?

Wattmeter Reading calculator uses Wattmeter Reading = (Pressure Coil Voltage*Iron Loss)/(Potential Difference) to calculate the Wattmeter Reading, The Wattmeter Reading formula is defined as an instrument for measuring the electric power (or the supply rate of electrical energy) in watts of any given circuit. Electromagnetic wattmeters are used for the measurement of utility frequency and audio frequency power. Wattmeter Reading is denoted by W_r symbol.

How to calculate Wattmeter Reading using this online calculator? To use this online calculator for Wattmeter Reading, enter Pressure Coil Voltage (V_wp), Iron Loss (P_i) & Potential Difference (V) and hit the calculate button. Here is how the Wattmeter Reading calculation can be explained with given input values -> 5.236413 = (10.25*9.4)/(18.4).

FAQ

What is Wattmeter Reading?

The Wattmeter Reading formula is defined as an instrument for measuring the electric power (or the supply rate of electrical energy) in watts of any given circuit. Electromagnetic wattmeters are used for the measurement of utility frequency and audio frequency power and is represented as W_r = (V_wp*P_i)/(V) or Wattmeter Reading = (Pressure Coil Voltage*Iron Loss)/(Potential Difference). Pressure Coil Voltage is typically proportional to the current being measured, generating a magnetic field that interacts with the current-carrying conductor for power measurement, Iron Loss refers to the electrical power dissipated as heat in the iron core of the instrument. It occurs due to magnetic hysteresis and eddy currents induced in the core material & Potential Difference is the external work needed to bring a charge from one location to another location in an electric field.

How to calculate Wattmeter Reading?

The Wattmeter Reading formula is defined as an instrument for measuring the electric power (or the supply rate of electrical energy) in watts of any given circuit. Electromagnetic wattmeters are used for the measurement of utility frequency and audio frequency power is calculated using Wattmeter Reading = (Pressure Coil Voltage*Iron Loss)/(Potential Difference). To calculate Wattmeter Reading, you need Pressure Coil Voltage (V_wp), Iron Loss (P_i) & Potential Difference (V). With our tool, you need to enter the respective value for Pressure Coil Voltage, Iron Loss & Potential Difference 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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