AC generator is a machine that converts mechanical energy into electrical energy. ... AC generators work on the principle of Faraday’s law of electromagnetic induction , which states that electromotive force – EMF or voltage – is generated in a current-carrying conductor that cuts a uniform magnetic field.
What is the principle of generator?
Electric generators work on the principle of electromagnetic induction . A conductor coil (a copper coil tightly wound onto a metal core) is rotated rapidly between the poles of a horseshoe type magnet. The conductor coil along with its core is known as an armature.
What is the working principle of AC generator?
Complete answer: AC generators work on the principle of Faraday’s law of electromagnetic induction . This law states that electro motive force is generated in a current carrying loop that is placed in a uniform magnetic field.
What is the principle of AC generator explain with diagram?
Principle: It works on the principle of Faraday’s law of electromagnetic induction . Whenever a coil is rotated in a uniform magnetic field about an axis perpendicular to the field, the magnetic flux linked with coil changes and an induced emf is set up across its ends.
What is AC generator construction?
Definition: The AC generator is a machine that converts mechanical energy into electrical energy in the form of alternative emf . A simple AC generator works on the principle of Faraday’s Law of Electromagnetic Induction. It has a coil of wire that rotates in a magnetic field.
What are the advantages of AC generator?
Advantages of ac generators :
AC is very easy and efficient to transmit over a long distance rather than DC . The design of the AC generator is fairly simpler than DC generator type. No need for matching a voltage. Cost of ownership is lower.
Is commutator present in AC generator?
No commutator is present in AC Generator . To make the current flow in one direction only, DC Generator comprises the commutator.
What is the principle of motor and generator?
The motor uses electricity . It works on the principle that when a current-carrying conductor is placed in a magnetic field, it experiences a force and rotates. The word ‘generator’ means to generate something, and an electrical generator produces (generates) electricity.
What are the two types of generator?
There are two fundamental types of generators known as AC (alternating current) and DC (direct current) generators . While the technique of producing electricity is the same in both types, AC and DC power become different in terms of their applications – the way in which loads receive electric power.
What are the two main parts of an AC generator?
There are two main components in the generator, the rotor and the stator . The generator must also have a source of DC current to magnetize the rotor, called the exciter.
What is motional emf?
An emf induced by motion relative to a magnetic field is called a motional emf. This is represented by the equation emf = LvB , where L is length of the object moving at speed v relative to the strength of the magnetic field B.
What are the types of AC generator?
- Induction generators.
- Synchronous generators.
Which one is not present in AC generator?
The general A.C. generator has all the listed components except the commutator .
What is AC generator Ncert?
AC generator is a device that converts mechanical energy into electrical energy(alternating currents) . AC generator is an example of inducing an emf or current in a loop by varying the magnetic field and area vector.
What is the advantage of AC and DC?
Because of the high voltages that can be generated, AC can be transmitted over long distances. Long-range transmission results in relatively low energy losses resulting from resistance. AC is cheaper to generate than DC. AC can be easily converted to DC if required .
What is the working principle of transformer?
Principle – A transformer works on the principle of mutual induction . Mutual induction is the phenomenon by which when the amount of magnetic flux linked with a coil changes, an E.M.F. is induced in the neighboring coil. A transformer is made up of a rectangular iron core.
