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What is phasor diagram in AC circuit?
As its name suggests, phasor diagram is used to represent the phase difference between the sinusoidal signals which have the same frequency but different phase and amplitude. Using this phasor diagram, it is easy to analyze different sinusoidal signal signals which have the same frequency.
What is power factor in AC circuits?
Power factor is defined as the ratio of the average power in an ac circuit to the apparent power, which is the product of the voltage and current magnitudes.
What is the formula of reactive power in AC circuit?
Reactive power: Q = V x Ir (kvar)
How is a phasor represented?
A phasor representation is represented as a complex number that is functional in a sinusoidal manner . The time-invariant parameters are amplitude (A), initial phase (θ), and angular velocity (ω). This representation is based upon the concept known as analytic representation.
What is the difference between phasor and a vector?
Although the both the terms vectors and phasors are used to describe a rotating line that itself has both magnitude and direction, the main difference between the two is that a vectors magnitude is the “peak value” of the sinusoid while a phasors magnitude is the “rms value” of the sinusoid.
What is a phasor representation?
A phasor is a rotating vector representing a quantity, such as an alternating current or voltage, that varies sinusoidally. A phasor representation is a simple way of reducing the complexities of handling single frequency circuits. A phasor gives answers for both magnitude and phase which are necessary for alternating current circuit analysis.
What is a phasor in physics?
In physics and engineering, a phasor (a portmanteau of phase vector ), is a complex number representing a sinusoidal function whose amplitude ( A ), angular frequency ( ω ), and initial phase ( θ) are time-invariant. It is related to a more general concept called analytic representation,…