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Voltage using Real Power Formula

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Voltage is used to determine the value of the potential difference between terminals where alternating current flows. Check FAQs

V = \frac{P}{I \cdot \cos (Φ)}

V - Voltage?P - Real Power?I - Current?Φ - Phase Difference?

Voltage using Real Power Example

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Here is how the Voltage using Real Power equation looks like with Values.

Here is how the Voltage using Real Power equation looks like with Units.

Here is how the Voltage using Real Power equation looks like.

129.2165 = \frac{235}{2.1 \cdot \cos (30)}

129.2165V = \frac{235W}{2.1A \cdot \cos (30°)}

129.2165 = \frac{235}{2.1 \cdot \cos (30)}

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Voltage using Real Power Solution

Follow our step by step solution on how to calculate Voltage using Real Power?

FIRST Step Consider the formula

V = \frac{P}{I \cdot \cos (Φ)}

Next Step Substitute values of Variables

∴

V = \frac{235W}{2.1A \cdot \cos (30°)}

Next Step Convert Units

∴

V = \frac{235W}{2.1A \cdot \cos (0.5236rad)}

Next Step Prepare to Evaluate

∴

V = \frac{235}{2.1 \cdot \cos (0.5236)}

Next Step Evaluate

∴

V = 129.216488818631V

LAST Step Rounding Answer

∴

V = 129.2165V

Voltage using Real Power Formula Elements

Variables

Functions

Voltage

Voltage is used to determine the value of the potential difference between terminals where alternating current flows.

Symbol: V

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Voltage

Real Power

The Real Power P is the average power in watts delivered to a load. It is the only useful power. It is the actual power dissipated by the load.

Symbol: P

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Real Power

Current

Current or AC is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current which flows only in one direction.

Symbol: I

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Current

Phase Difference

Phase Difference is defined as the difference between the phasor of apparent and real power (in degrees) or between voltage and current in an ac circuit.

Symbol: Φ

Measurement: AngleUnit: °

Note: Value should be greater than 0.

Formulas to find Phase Difference

cos

Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.

Syntax: cos(Angle)

Other Formulas to find Voltage

Go Voltage using Complex Power

V = \sqrt{S \cdot Z}

Go Voltage using Power Factor

V = \frac{P}{cosΦ \cdot I}

Go Voltage using Reactive Power

V = \frac{Q}{I \cdot \sin (Φ)}

Other formulas in Voltage category

Go Capacitance for Parallel RLC Circuit using Q Factor

C = \frac{L \cdot {Q ||}^{2}}{R^{2}}

Go Capacitance for Series RLC Circuit given Q Factor

C = \frac{L}{{Q se}^{2} \cdot R^{2}}

Go Capacitance given Cut off Frequency

C = \frac{1}{2 \cdot R \cdot π \cdot f c}

Go Capacitance using Time Constant

C = \frac{τ}{R}

How to Evaluate Voltage using Real Power?

Voltage using Real Power evaluator uses Voltage = Real Power/(Current*cos(Phase Difference)) to evaluate the Voltage, Voltage using Real Power is the difference in electric potential between two points, which (in a static electric field) is defined as the work needed per unit of charge to move a test charge between the two points. Voltage is denoted by V symbol.

How to evaluate Voltage using Real Power using this online evaluator? To use this online evaluator for Voltage using Real Power, enter Real Power (P), Current (I) & Phase Difference (Φ) and hit the calculate button.

FAQs on Voltage using Real Power

What is the formula to find Voltage using Real Power?

The formula of Voltage using Real Power is expressed as Voltage = Real Power/(Current*cos(Phase Difference)). Here is an example- 129.2165 = 235/(2.1*cos(0.5235987755982)).

How to calculate Voltage using Real Power?

With Real Power (P), Current (I) & Phase Difference (Φ) we can find Voltage using Real Power using the formula - Voltage = Real Power/(Current*cos(Phase Difference)). This formula also uses Cosine (cos) function(s).

What are the other ways to Calculate Voltage?

Here are the different ways to Calculate Voltage-

Voltage=sqrt(Complex Power*Impedance)
Voltage=Real Power/(Power Factor*Current)
Voltage=Reactive Power/(Current*sin(Phase Difference))

Can the Voltage using Real Power be negative?

Yes, the Voltage using Real Power, measured in Electric Potential can be negative.

Which unit is used to measure Voltage using Real Power?

Voltage using Real Power is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which Voltage using Real Power can be measured.

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