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The shape of the magnet is unimportant. Any moving magnet can induce a voltage in a wire. Or any changing magnetic field. If the magnet rotates, its magnetic field will change, so yes.
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What type of material is used for making temporary magnet?
An electo-magnet has an iron core wrapped round with wire coils. When electricity is passed through the coils, the iron core become magnetised, until the electricity is switched off.
How do you identify the polarities in round magnet?
You can identify the polarities in a round magnet by placing another magnet next to it. If they repel they have the same polarity and if they are attracted the polarity is the same.
What are 5 types of artificial magnets and state their uses?
Bar magnet, ball ended magnet, cylindrical magnet,horse shoe magnet, round magnet
What do you call the round piece which holds the two objectives?
rotating eye peice at microscope
How does wind power generate electrical energy?
wind will power things like wind veins. As these turn it is rotating a coil of wire round a magnet, the wires lead from the wire coil and lead to its next destination. This creates electricity. You will find a similar mechanism inside a toy slot car. You can try this yourself by winding some wire around a small section of PVC pipe and connect the ends to a volt meter. The more coiled wire there is, the more energy will be produced.
How is electricity made from copper wire and a magnet?
Electricity is made when a magnet is spun round quickly inside a tube with a wire coil raped around the inside of the tube this is used in a electric power stations, dams ect.
What type of material is used for making temporary magnet?
An electo-magnet has an iron core wrapped round with wire coils. When electricity is passed through the coils, the iron core become magnetised, until the electricity is switched off.
What is the use of magnet in speakers?
Principle is electromagmnetism. When a conductor cuts magnetic field electricity is induced in the conductor (Fixed magnet). When a magnet is moved near a conductor electricity is generated in the conductor (Fixed conductor). In speakers magnet is fixed and the conductor (in the form of a coil is fixed to the back of the diaphragm) is allowed to move freely. As the coil is fixed to the diaphragm the movements of the coil is reciprocated by the movements of the diaphragm. Our voice induces varying current in the microphone and the same varying current is passed through the coil of the speaker hence it moves in the static magnetic field.
What is it called when you go round and round?
Spinning or rotating
Can be produced by electric currents going around?
Sending electricity though a copper wire wrapped round an iron core will create an electro-magnet.
How do you identify the polarities in round magnet?
You can identify the polarities in a round magnet by placing another magnet next to it. If they repel they have the same polarity and if they are attracted the polarity is the same.
What does the Earth rotating mean?
It means it's spinning round and round.
What is a fake magnet?
well you better should not call it fake magnet, you may call it synthetic magnet, cause its not actually fake its synthethic, well a synthetic magnet is a magnet which is not originally in nature of a magnet, it may have been maded a magnet by electricity, but these magnet have temporary life of attracting magnetic stuffs like iron, to prepare a synthetic magnet take any thing that attracts to a magnet, for example take iron needle and wrap a copper wire on it round and round, then give the electrical charges to the end of wires, i.e one end positive charge and other end negative charge, charge it for sometime and take the needle out of it, now you needle is a synthetic magnet.
Is there a scale for magnet strength?
They are bar magnet ,horse shoe magnet ,lime stone magnet.
Where is the field round a magnet strong?
The field strengthens as you get closer to the surface of the magnet.
What are 5 types of artificial magnets and state their uses?
Bar magnet, ball ended magnet, cylindrical magnet,horse shoe magnet, round magnet
What apparatus are needed to generate hydro-electricity?
Moving water (dams, rivers, tides) and turbines (like an electric motor in reverse) that will produce electricity when the moving water spins them round.
