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The main components of AC generator are as shown in figure.
1. Armature 2. Strong magnets 3. Slip rings and 4. Brushes.
Armature, strong magnets and brushes are the same as used for electric motors.
Slip rings:
The two ends of the armature coil are connected to two brass slip rings R1 and R2. These rings rotate along with the armature coil.
Working:
a. When the armature coil ABCD rotates in the magnetic field provided by the strong magnets, it cuts the magnetic lines of forces.
b. Thus the changing magnetic field produces induced current in the coil. The direction of induced current is determined by the Flemings right hand rule.
c. The current flows out through the brush B1 in one direction in the first half of the revolution and through the brush B2 in the next half revolution in the reverse direction, this process is repeated.
d. Therefore, the induced current produced is of alternating nature. Such a current is called as alternating current.
Same way the hydro-electric systems works ; by turning a dynamo really quickly, alternating the “magnetic field” within to force electron flow i.e electricity. To better understand how this works. Tear up an old cassette radio and find this :
electromagnetic induction discovered by Michael Faraday. Generators are basically coils of electric conductors, normally copper wire, that are tightly wound onto a metal core and are mounted to turn around inside an exhibit of large magnets. An electric conductor moves through a magnetic field, the magnetism will interface with the electrons in the conductor to induce a flow of electrical current inside it.
The conductor coil and its core are called the armature, connecting the armature to the shaft of a mechanical power source, for example an motor, the copper conductor can turn at exceptionally increased speed over the magnetic field.
1. Armature 2. Strong magnets 3. Slip rings and 4. Brushes.
Armature, strong magnets and brushes are the same as used for electric motors.
Slip rings:
The two ends of the armature coil are connected to two brass slip rings R1 and R2. These rings rotate along with the armature coil.
Working:
a. When the armature coil ABCD rotates in the magnetic field provided by the strong magnets, it cuts the magnetic lines of forces.
b. Thus the changing magnetic field produces induced current in the coil. The direction of induced current is determined by the Flemings right hand rule.
c. The current flows out through the brush B1 in one direction in the first half of the revolution and through the brush B2 in the next half revolution in the reverse direction, this process is repeated.
d. Therefore, the induced current produced is of alternating nature. Such a current is called as alternating current.
Same way the hydro-electric systems works ; by turning a dynamo really quickly, alternating the “magnetic field” within to force electron flow i.e electricity. To better understand how this works. Tear up an old cassette radio and find this :
electromagnetic induction discovered by Michael Faraday. Generators are basically coils of electric conductors, normally copper wire, that are tightly wound onto a metal core and are mounted to turn around inside an exhibit of large magnets. An electric conductor moves through a magnetic field, the magnetism will interface with the electrons in the conductor to induce a flow of electrical current inside it.
The conductor coil and its core are called the armature, connecting the armature to the shaft of a mechanical power source, for example an motor, the copper conductor can turn at exceptionally increased speed over the magnetic field.
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