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5 uses for a magnet?
electric motor, dynamo / alternator, loud speaker, rail gun, metal detector,
In which case will electric current be induced in a coil of wire?
The coil must experience a changing magnetic field in order to have a current induced. You can rotate the coil between the poles of a magnet, or rotate the magnet around the coil.
How is electricity transformed into motion?
A motor transforms electricity. Inside the motor, there is a permanent magnet and an electromagnet, which can rotate. When the circuit is closed, the electromagnet is constantly repelled and attracted to the permanent magnet. This will cause the electromagnet to turn. It also causes anything that is attached to the electromagnet to turn, causing motion.
What does the dynamo theory help?
The dynamo theory helps explain how a planet or star can make its own magnetic field. William Gilbert was the first person to suggest that the Earth is a magnet in a report called de Magnete in 1600.
What does dynamo theory help explain?
The dynamo theory helps explain how a planet or star can make its own magnetic field. William Gilbert was the first person to suggest that the Earth is a magnet in a report called de Magnete in 1600.
How a dynamo woks?
Dynamo has constant magnet inside.When movement comes up ,magnet starts turning .And outside of magnet has coiled wire .So this movement of magnet causes electromagnetic effect .Finally current consists with this electomagnetic effect.
How much rpm should required to rotate a 3phase dynamo?
1400rpm
How does a dynamo generate electricity?
A dynamo passes a magnet past a coil. The movement of the magnet past the wire causes eddy currents to develop which cause electrons to align and move through the wire. If there is enough wire and a strong enough magnet, the current (flow of electrons) is enough to become useful and power a device. It is the growing and shrinking lines of force that cause the electrons to develop this alignment and therefore the electric current.
What is a loop or cool of wire that can rotate?
AC and DC Dynamo, galvanometers, etc...
Does a dynamo have mechanical load or does it rotate freely without much efforts like a bearing?
It rotates freely until it is required to do work. As soon as a load is placed across the output more effort will be required to rotate the Dynamo.
A magnet free to rotate becomes what?
A compass, because the magnet's North pole will rotate until it points to the Earth's North pole.
How is hydroelectric energy converted to electricity?
in an hydrolectric plant there are turbines in the bottom then the water is made to fall from a great height which causes the turbine to rotate and producing electricity in same way as done in rotating dynamo
What causes a bullet to rotate on exit?
What causes it to rotate is the rifling in the barrel. What causes it to continue to rotate after it leaves the barrel is centrifugal force.
What causes the earths magntic fied?
Dynamo Effect
What do you need to build your own dynamo?
Physics is reversible. SO you can use the inverse properties of any DC motor. Which means that when you give electricity, the motor rotates. But if you rotate the motor, with some extra circuit, It can act like a dynamo.
How could you make this bar magnet rotate without touching it?
by keeping another magnet or attractive force
What causes Jupiter's magnetic field?
What causes it's magnetic field is the dynamo effect.
