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It really does depend upon what you mean by 'shift'.
For purely-resistive circuits, the load current is in phase with the supply voltage. For reactive circuits, the load current will lead or lag the supply voltage; for capacitive-resistive circuits, the load current leads, whereas for inductive-resistive circuit, the load current lags.
You can change the angle by which the current leads or lags (the 'phase angle') by changing the amount of resistance or reactance.
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Why there is phase shift in AC circuit?
due to presence of passive elements
What are the two different forces acts in opposite direction on the rotor of single phase induction motor?
An induction motor has an AC power source applied to the stator and an AC source applied to the rotor, through slip rings. The rotor spins a sub synchronous speed, which creates the phase shift between rotor AC and stator AC. This phase shift (known as slip) is what creates the torque.
How to design a phase shifter circuit using operational amplifier to have a desired phase shift?
There are many phase shift oscillator circuits on the internet. Google search, `phase+shift+oscillator+schematics` and `phase+shift+oscillator+diagrams`. Generally, if you want to change the phase shift characteristics, you'll need to substitute some fixed resistors with variable resistors and depending where they're placed, you can either change the operating frequency or the waveform characteristics.
Why DC electricity does not have poly phase?
There is no such thing as phase in DC as phase requires AC. To have two or more things out of phase requires them to be changing. Only AC does that. DC is steady state.
How do you get phase shift in Hartley oscillator?
basicaly the two inductors work as an autotransformer,providing a phase shift of 180 degree
Why there is phase shift in AC circuit?
due to presence of passive elements
Why pf maintaining for ac only not in DC?
Power Factor measures the phase shift between current and voltage waveform. Since DC has no frequency there can be no phase shift.
What are the two different forces acts in opposite direction on the rotor of single phase induction motor?
An induction motor has an AC power source applied to the stator and an AC source applied to the rotor, through slip rings. The rotor spins a sub synchronous speed, which creates the phase shift between rotor AC and stator AC. This phase shift (known as slip) is what creates the torque.
How many basic types of electronic signals are there?
AC - DC ... analog - digital ... frequency - phase shift ... AM - FM
How does the phase-shift oscillator get its name?
The phase-shift oscillator gets its name from the phase-shift network used in its design, which introduces a phase shift in the feedback path of the circuit. This phase shift is necessary for maintaining oscillations in the circuit.
What is the phase and phase shift in Integrator and Differentiator?
phase shift in integrator is 180 degrees and phase shift in differentiator is 0 degrees
What is the phase shift of y csc2(x )?
There is no phase shift.
Why do you get a inverted waveform when a AC signal is passed to a amplifier?
Due to its negative gain and 180' phase shift between base and collector
Is three phase is ac or dc?
Three phase is ac
Do you expect angle in rlc series circuit to be a constant?
The phase shift angle of an RLC circuit is constant for a constant frequency, but changes with different frequencies.The phase angle of the AC in the RLC circuit is however continuously changing. Otherwise it wouldn't be AC.
What is the exact definition of differential phase shift keying?
differential phase-shift keying (′dif·ə′ren·chəl ′fāz ′shift ′kē·iŋ) (communications) Form of phase-shift keying in which the reference phase for a given keying interval is the phase of the signal during the preceding keying interval. Also known as differentially coherent phase-shift keying.Above retrieved from Answers.comViper1
Classification of ac motor?
ac:1) 1 phase 2) poly phase 3)universal
