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Why three phase induction motor has uniform torque?
The 3-phase currents in the 3 coils of an induction motor will produce a steady rotating magnetic field.
Can a dc electric field produce magnetic field?
Yes. A steady current will produce a magnetic field, B= uI/r
Do transformers use steady magnetic fields to produce an emf in the secondary?
In an AC circuit it is the fluctuation of the sine wave which causes a varying magnetic field which in turn induces a current to flow in the secondary.
Why three phase motors are self starting?
Because the three phases are 120 degrees apart which kind of gives a "rotational magnetic field" as apposed to a two phase motor (your common 220 volt motor) where the phases are 180 degrees apart and the magnetic field opposes itself until the motor is spinning.
During the first quarter cycle energy is given to an inductor. and the same amount of energy is returned by the inductor during the next quarter cycle .then how is energy stored in inductor?
Well, first of all, nobody ever claimed that the energy is stored 'in the inductor'.The energy is stored in the inductor's magnetic field.Next: When they say that energy is stored, it doesn't necessarily mean that it'sstored like in a box or a jar, and you can fill it up, put it up on the shelf, then comeback and get it in a few days.The energy stored in the magnetic field is steady as long as the current through theinductor is steady. If the current is changing, then the energy in the magnetic fieldis also changing. When the energy in the magnetic field is decreasing, then of coursethe magnetic field is returning some of its stored energy to the circuit, by way of thecurrent.
Can a changing magnetic field produce a steady electric field?
Yes, a changing magnetic field can induce a steady electric field. This is described by Faraday's law of electromagnetic induction, where a changing magnetic field creates an electric field in the surrounding space.
Why three phase induction motor has uniform torque?
The 3-phase currents in the 3 coils of an induction motor will produce a steady rotating magnetic field.
What is the impact of the state of electrical currents on the efficiency of magnetic fields?
The state of electrical currents affects the efficiency of magnetic fields by influencing the strength and direction of the magnetic field produced. A steady and consistent electrical current can result in a more stable and efficient magnetic field, while fluctuations or interruptions in the current can lead to decreased efficiency and effectiveness of the magnetic field.
What is a steady stream of electricity?
electric current
What is a smooth steady movement of liquid gas or electricity?
That would be a flow.
How does the electromagnet in a generator work?
An electromagnet in a generator works by using an electric current to create a magnetic field. This magnetic field interacts with a rotor, causing it to spin and generate electricity through electromagnetic induction. The continuous rotation of the rotor ensures a steady supply of electrical energy.
Is a three phase induction motor self starting?
A three-phase motor has a steady rotating magnetic field generated by the stator coil, and the rotor just follows the field.
Is the magnetic field strength in Figure 1 increasing, decreasing, or steady?
In Figure 1, the magnetic field strength is increasing.
What did alessandro volta make to study electricity?
Alessandro Volta invented the voltaic pile, the first electrical battery, to study electricity. It consisted of alternating discs of two different metals separated by cardboard soaked in saltwater, which produced a steady flow of electrical current.
Can a dc electric field produce magnetic field?
Yes. A steady current will produce a magnetic field, B= uI/r
What is the low steady tone produced by bagpipes as an accompaniment to a melody called?
The Drone
What shape do magnetic field lines have around a wire with a steady current in it?
The magnetic field lines around a wire carrying a steady current form concentric circles perpendicular to the direction of current flow. This creates a magnetic field that wraps around the wire, with the strength of the field decreasing as you move further away from the wire.
