# Definitions for wattmeterˈwɒtˌmi tərwattmeter

### Princeton's WordNetRate this definition:0.0 / 0 votes

1. wattmeternoun

an instrument for measuring in watts the flow of power in an electrical circuit

### WiktionaryRate this definition:0.0 / 0 votes

1. wattmeternoun

An instrument for measuring electric power in watts.

### WikipediaRate this definition:0.0 / 0 votes

1. Wattmeter

The wattmeter is an instrument for measuring the electric active power (or the average of the rate of flow of electrical energy) in watts of any given circuit. Electromagnetic wattmeters are used for measurement of utility frequency and audio frequency power; other types are required for radio frequency measurements. A wattmeter reads the average value of the product v(t)i(t) = p(t), where v(t) is the voltage with positive reference polarity at the ± terminal with respect to the other terminal of the potential coil, and i(t) is the current with reference direction flowing into the ± terminal of the current coil. The wattmeter reads P = (1/T) ∫0T v(t)i(t) dt, which in sinusoidal steady-state reduces to Vrms Irms cos(φ), where T is the period of p(t) and φ is the angle by which the current lags the voltage.

### ChatGPTRate this definition:0.0 / 0 votes

1. wattmeter

A wattmeter is an instrument that measures the electric power (energy per unit time), in watts, circulating through an electrical circuit. It does this by measuring both the current and the potential difference in the circuit to calculate the total power. Some modern wattmeters can also determine power factor, phase angle, and reactive power.

### Webster DictionaryRate this definition:0.0 / 0 votes

1. Wattmeternoun

an instrument for measuring power in watts, -- much used in measuring the energy of an electric current

2. Etymology: [Watt + meter.]

### WikidataRate this definition:4.0 / 1 vote

1. Wattmeter

The wattmeter is an instrument for measuring the electric power in watts of any given circuit. Electromagnetic wattmeters are used for measurement of utility frequency and audio frequency power; other types are required for radio frequency measurements.

### Numerology

1. Chaldean Numerology

The numerical value of wattmeter in Chaldean Numerology is: 8

2. Pythagorean Numerology

The numerical value of wattmeter in Pythagorean Numerology is: 8

### Popularity rank by frequency of use

wattmeter#100000#214160#333333

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"wattmeter." Definitions.net. STANDS4 LLC, 2024. Web. 25 Jun 2024. <https://www.definitions.net/definition/wattmeter>.

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