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Power can be defined as the rate at which work is done by a force moving an object over a certain distance in a given time.

P w = F e \cdot Δv

Power Absorbed by Disc Brake

The Power absorbed by disc brake formula is defined as the total Power that is absorbed in the form of heat generation when the braking force is applied on the disc brakes to lower the speed of wheel.

P d = 2 \cdot p \cdot A p \cdot μ p \cdot R m \cdot n \cdot 2 \cdot n \cdot \frac{N}{60}

Power Absorbed in Collar Bearing

Power Absorbed in Collar Bearing depends on the frictional force, the angular velocity of the shaft, and the radius of the collar. It is directly proportional to the frictional force (which is a product of the normal load and the coefficient of friction) and the radius of the collar, as well as the angular velocity of the rotating shaft.

P' = \frac{2 \cdot μ \cdot π^{3} \cdot N^{2} \cdot ({R 1}^{4} - {R 2}^{4})}{t}

Power Absorbed in Foot-Step Bearing

Power Absorbed in Foot-Step Bearing depends on the frictional force, the angular velocity of the shaft, and the radius of the bearing. It is directly proportional to the frictional force (which is a product of the axial load and the coefficient of friction) and the angular velocity of the shaft. The radius of the bearing also plays a role, with Power absorption increasing with larger radii.

P = \frac{2 \cdot μ \cdot π^{3} \cdot N^{2} \cdot {(\frac{D s}{2})}^{4}}{t}

Power Absorbed in Overcoming Viscous Resistance in Journal Bearing

Power Absorbed in Overcoming Viscous Resistance in Journal Bearing depends on the viscosity of the lubricant, the dimensions of the bearing (including the radius and length), the rotational speed of the shaft, and the clearance between the shaft and the bearing. The Power absorption is directly proportional to the lubricant's viscosity, the bearing dimensions, the square of the rotational speed, and inversely proportional to the clearance between the shaft and the bearing.

P = \frac{μ \cdot π^{3} \cdot {D s}^{3} \cdot N^{2} \cdot L}{t}

Power available for Machining given Initial weight of workpiece

The Power available for Machining given Initial weight of workpiece is defined as the amount of Power available during the machining process.

P m = a p \cdot {(W)}^{b}

Power available for Machining given Machining time for maximum Power

The Power available for Machining given Machining time for maximum Power is defined as the amount of Power available during the machining process.

P max = \frac{60 \cdot V r \cdot p s}{t p}

Power Available for Reciprocating Engine-Propeller Combination

Power Available for Reciprocating Engine-Propeller Combination is a measure of the effective Power delivered by a reciprocating engine to a propeller, taking into account the propeller's efficiency and the engine's brake Power.

P A = η \cdot BP

Power Coefficient of Wind Machine

The Power Coefficient of Wind Machine is the ratio of the Power extracted by the rotor to the Power available in the wind stream.

C p = \frac{P e}{0.5 \cdot ρ \cdot π \cdot R^{2} \cdot {V ∞}^{3}}

Power Consumed at Full-Scale Reading

The Power Consumed at Full-Scale Reading formula is defined as the amount of electrical Power used by a device or system when it is operating at its maximum rated input or output capacity.

P fs = I fs \cdot E fs

Power Consumption by Mill while Crushing

The Power Consumption by Mill while Crushing is defined as the difference in Power used while crushing and the Power used by mill when it is empty.

P l = P c + P o

Power Consumption for Crushing only

The Power Consumption for Crushing only is the net Power that is consumed while the mill operates. it includes both the Powers, the Power that is associated with Power losses and actual Power consumed for crushing of particles.

P c = P l - P o

Power Consumption of Chip

The Power Consumption of chip formula is defined as total Power consumed or dissipated by integrated chip when current flows through it.

P chip = \frac{ΔT}{Θ j}

Power Consumption while Mill is Empty

The Power Consumption while Mill is Empty is defined as the difference in the Power consumption of mill while only crushing and Power consumption of Mill while crushing.

P o = P l - P c

Power Conversion Efficiency of Class A Output Stage

The Power conversion efficiency of class A output stage formula is defined as the proportion of the area under the I-V curve of a PV cell to the input illumination intensity.

η pA = \frac{1}{4} \cdot (\frac{{Vˆ o}^{2}}{I b \cdot R L \cdot V cc})

Power Converted in Induction Motor

Power Converted in Induction Motor is defined as the Power which is converted from electrical to mechanical by an induction motor.

P conv = P ag - P r(cu)

Power Delivered to Load in Three Phase Uncontrolled Rectifier

Power Delivered to Load in Three Phase Uncontrolled Rectifier depends on the configuration of the rectifier, the input voltage, and the load. The Power can be calculated based on the rectifier type and load. formula assumes ideal conditions with a purely resistive load and no voltage drops or losses in the rectifier. In practice, there will be some losses in the diodes, and the actual Power delivered to the load may be slightly lower.

P out = V ac \cdot V dc

Power Delivered to Wheel

The Power Delivered to Wheel is quantity of energy transferred by force to move object is termed as work done.

P dc = (\frac{w f}{G}) \cdot (v f \cdot u + v \cdot v f)

Power Density after Voltage Scaling VLSI

The Power Density after Voltage Scaling VLSI formula is defined as a measure of Power output per unit Area. It quantifies Power distribution within a given space when MOSFET is scaled down by voltage scaling method.

P D' = P D \cdot {(Sf)}^{3}

Power Density at Satellite Station

Power Density at Satellite Station refers to the amount of Power per unit area received or transmitted by satellite equipment, crucial for efficient signal transmission and reception in satellite communications.

P d = EIRP - L path - L total - (10 \cdot \log 10 (4 \cdot π)) - (20 \cdot \log 10 (R sat))

Power Density of Antenna

The Power Density Of Antenna formula is defined as the measure of the Power from an antenna to a certain distance D. This assumes that an antenna radiates Power in all directions.

S = \frac{P i \cdot G}{4 \cdot π \cdot D}

Power Density of Laser Beam

The Power Density of Laser Beam formula is defined as the Power contained in per unit area of beam cross section.

δ p = \frac{4 \cdot P}{π \cdot {f lens}^{2} \cdot α^{2} \cdot ΔT}

Power Density of Spherical Wave

The Power Density of Spherical Wave is the amount of Power per unit area that radiates outward from the source.

P d = \frac{P \cdot g t}{4 \cdot π \cdot d}

Power Density Radiated by Lossless Antenna

The Power Density Radiated by Lossless Antenna formula is defined as the lossless antenna that radiates Power uniformly in all directions.

ρ = \frac{ρ max}{G max}

Power Density Spectrum of Thermal Noise

Power Density Spectrum of Thermal Noise is the distribution of energy or Power per unit bandwidth as a function of frequency.

P dt = 2 \cdot [BoltZ] \cdot T \cdot R ns

Power Developed by Turbine

The Power developed by turbine formula is defined as the force of the fluid on the blades spins/rotates the rotor shaft of a generator. The generator, in turn, converts the mechanical (kinetic) energy of the rotor to electrical energy.

P T = ρ 1 \cdot Q \cdot V wi \cdot ν t

Power Developed during Extension

Power Developed during Extension formula is defined as the rate at which work is done by a hydraulic actuator or motor, typically measured in watts, and represents the energy conversion from fluid pressure to mechanical motion.

P = F \cdot v piston

Power Dissipated by Heat in SCR

The Power dissipated by heat in SCR formula is defined as the loss of energy during the working of SCR due to the dissipation of heat from SCR junctions.

P dis = \frac{T junc - T amb}{θ}

Power Dissipation after Voltage Scaling VLSI

The Power Dissipation after Voltage Scaling VLSI formula is defined as the how much Power is dissipating after the scaling down MOSFET by voltage scaling method.

P' = Sf \cdot P

Power Dissipation of TRIAC

Power Dissipation of TRIAC is the amount of heat that is generated by the triac when it is conducting current. It is a function of the triac's on-state voltage drop, the load current, and the triac's thermal resistance. The on-state voltage drop of a triac is the voltage that is dropped across the triac when it is conducting current. The load current is the current that is flowing through the triac. The thermal resistance of a triac is a measure of how well the triac can dissipate heat.

P max(triac) = V knee(triac) \cdot I avg(triac) + R s(triac) \cdot {I rms(triac)}^{2}

Power Drain from Positive Sine Wave

Power Drain from Positive Sine Wave is defined as the rate at which energy is being consumed or drawn from a Positive Sine Wave.

P = \frac{V m \cdot V i}{π \cdot R L}

Power Drop in Brush DC Generator

Power Drop in Brush DC Generator is the loss taking place between the commutator and the carbon brushes. The voltage drop occurring over a large range of armature currents, across a set of brushes is approximately constant. If the value of the brush voltage drop is not given then it is usually assumed to be about 2 volts. Thus, the brush drop loss is taken as 2Ia.

P BD = I a \cdot V BD

Power Extracted by Rotor given Power Coefficient of Wind Machine

The Power Extracted by Rotor given Power Coefficient of Wind Machine is defined as the rate at which mechanical energy is extracted by the rotor from the wind stream by reducing its kinetic energy.

P e = C p \cdot (0.5 \cdot ρ \cdot π \cdot (R^{2}) \cdot {V ∞}^{3})

Power Factor

The Power Factor formula is defined as the ratio of the real Power absorbed by the load to the apparent Power flowing in the circuit, and is a dimensionless number in the closed interval of −1 to 1.

PF = V rms \cdot I rms \cdot \cos (φ)

Power Factor Angle for 3 Phase 3 Wire System

Power factor angle for 3 phase 3 wire system formula is defined as the phase angle between reactive and active Power for a three phase and three wire system.

Φ = a \cos (\frac{P}{\sqrt{3} \cdot V ac \cdot I})

Power Factor Angle for Single Phase 3 Wire System

Power factor angle for single phase 3 wire system formula is defined as the phase angle between reactive and active Power.

Φ = a \cos (\frac{P}{2 \cdot V ac \cdot I})

Power Factor given Impedance

The Power factor given impedance of an AC electrical Power system is defined as the ratio of the resistance and impedance of the circuit.

cosΦ = \frac{R}{Z}

Power Factor given Power

Power Factor given Power is defined as the ratio of the real Power absorbed by the load to the apparent Power flowing in the circuit.

cosΦ = \frac{P}{V \cdot I}

Power Factor given Power Factor Angle

Power Factor given Power Factor Angle is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

cosΦ = \cos (Φ)

Power Factor of Synchronous Motor given 3 Phase Mechanical Power

The Power Factor of Synchronous Motor given 3 phase Mechanical Power formula is defined as the ratio of the real Power absorbed by the load to the apparent Power flowing in the circuit.

CosΦ = \frac{P me(3Φ) + 3 \cdot {I a}^{2} \cdot R a}{\sqrt{3} \cdot V L \cdot I L}

Power Factor of Synchronous Motor given Input Power

The Power Factor of Synchronous Motor given Input Power formula is defined as the ratio of the real Power absorbed by the load to the apparent Power flowing in the circuit.

CosΦ = \frac{P in}{V \cdot I a}

Power Factor of Synchronous Motor using 3 Phase Input Power

The Power Factor of Synchronous Motor using 3 phase Input Power formula is defined as the ratio of the real Power absorbed by the load to the apparent Power flowing in the circuit.

CosΦ = \frac{P in(3Φ)}{\sqrt{3} \cdot V L \cdot I L}

Power Factor using Area of X Section (1 Phase 3 Wire US)

The Power Factor using Area of X section (1 phase 3 wire US) formula is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

PF = ((2 \cdot \frac{P}{V m}) \cdot \sqrt{ρ \cdot \frac{L}{P loss \cdot A}})

Power Factor using Area of X-Section (1-Phase 2-Wire Mid-Point Earthed)

The Power Factor using Area of X-Section (1-phase 2-wire Mid-point Earthed) formula is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

PF = \sqrt{4 \cdot (P^{2}) \cdot ρ \cdot \frac{L}{A \cdot P loss \cdot ({V m}^{2})}}

Power Factor using Area of X-Section (1-Phase 2-Wire US)

The Power Factor using Area of X-Section (1-Phase 2-Wire US) formula is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

PF = \sqrt{\frac{(4) \cdot (P^{2}) \cdot ρ \cdot L}{A \cdot P loss \cdot ({V m}^{2})}}

Power Factor using Area of X-Section (2 Phase 4 Wire US)

The Power Factor using Area of X-Section (2 phase 4 wire US) formula is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

PF = ((2) \cdot \frac{P}{V m}) \cdot \sqrt{ρ \cdot \frac{L}{P loss \cdot A}}

Power Factor using Area of X-Section (3 Phase 3 Wire US)

The Power Factor using Area of X-Section (3 phase 3 wire US) formula is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

PF = (\frac{P}{V m}) \cdot \sqrt{2 \cdot ρ \cdot \frac{L}{A}}

Power Factor using Area of X-Section (3 Phase 4 Wire US)

The Power Factor using Area of X-Section (3 phase 4 wire US) formula is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

Φ = a \cos ((\frac{P}{V m}) \cdot \sqrt{2 \cdot ρ \cdot \frac{L}{A \cdot P loss}})

Power Factor using Area of X-Section(2-Phase 4-Wire OS)

The Power Factor using Area of X-section(2-phase 4-wire OS) formula is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

PF = \sqrt{(P^{2}) \cdot ρ \cdot \frac{L}{2 \cdot A \cdot P loss \cdot ({V m}^{2})}}

Power Factor using Area of X-Section(3-Phase 3-Wire OS)

The Power Factor using Area of X-section(3-phase 3-wire OS) formula is defined as the cosine of the angle between the voltage phasor and current phasor in an AC circuit.

PF = \sqrt{2 \cdot ρ \cdot \frac{P^{2} \cdot L^{2}}{3 \cdot A \cdot P loss \cdot ({V m}^{2})}}

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