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What else can I help you with?
Is there a magnet in an electromagnet?
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current ceases. Take a look at this Wikipedia page for more information: http://en.wikipedia.org/wiki/Electromagnet
A compass needle changes direction if the flow of electricity in the wire near it is reversed.?
The only way to make current flow through a compass needle is to connect a wire to each end of the needle. When you do that, the direction the needle points is completely determined by the wires, and it's no longer free to rotate. So I'd say that nothing at all interesting happens.
Why are electromagnets used instead of a permanent one?
sometimes in magnetic sepration etc electromagnets are more useful than permanent one as first magnet is used to seprate metallic waste and then its turned off so that attracted waste falls off at desired place so here permanent magnets are not that use full as electromagnet as in permanent magnet waste would get attracted but it would not fall. so electromagnet is more useful than permanent one.
Where would the needle puncture the balloon with least amount of effort?
Assuming you are attempting to puncture a balloon and keep it intact, I would reccomend puncturing the balloon near the knot, where the rubber is thick and not streched out. If you are trying to pop the balloon, then I would puncture the balloon where the rubber is thinnest.
What does a circuit diagram for a scrap heap magnet looks like?
The cicuit at first is all conected when it is turned on then the person driving the machine will turn the engine off and the circuit will disconnect causeing the magnet not to keep hold of the metal.
How would you Used needle in a sentence?
That was like looking for a needle in a haystack of needles!
Has anyone ever found a needle in a haystack?
The phrase "like finding a needle in a haystack" is used to describe something extremely difficult or challenging. There are no verified records of someone actually finding a needle in a haystack, as it would be an incredibly rare and laborious task.
What is the origin of finding a needle in haystack?
The idiom, finding a needle in a haystack, was first recorded in the works of Saint Thomas More in 1532. It read, to seek out one line in his books, would be to go look for a needle in a meadow.
What would happen if you put a compass next to a electromagnet?
The compass needle would align itself with the magnetic field produced by the electromagnet. The north-seeking pole of the compass needle would point towards the south pole of the electromagnet, indicating the direction of the magnetic field.
What would happen if you placed a compass near an electromagnet?
The compass needle would align itself with the magnetic field produced by the electromagnet. The north-seeking end of the compass needle would point towards the south pole of the electromagnet, and vice versa.
What does Finding a needle in a haystack mean?
It means a very difficult task. If you were trying to find a sewing needle (a very small item) in a haystack (a very large pile of dry grass, about the size of a semi-truck) that would be very hard to do, and a lot of work. (Figure of speech)Something so extremely difficult to locate as to be considered impossible. Usually expressed as "you would have better luck finding a needle in a haystack than. . ."It means it is hard to do
What would happen if you placed a compass near an electromagnet when there is an electric current in the coil of the electromagnet?
The needle of the compass will align itself with the magnetic field produced by the electromagnet due to the flow of electric current in the coil. The compass needle will point in the direction of the magnetic field lines, which are generated by the current passing through the coil of the electromagnet.
How would you use 'proverbial' in a sentence?
it is an adjective ex) Finding my long lost sister was like finding the proverbial needle in a haystack. or... The proverbial construction workers whistled at the various passers-by.
If you have a photo of a house and you need to know where it is and who lives there?
A photo of a house could be anywhere in the world, so unless you have some sort of starting point, it would be like finding the proverbial needle in a haystack.
Where would you find simile in Oliver Twist?
a phrase that highlights similarity between things of different kinds — usually formed with "like" or "as" as in "It's like looking for a needle in a haystack," or "She is as quiet as a mouse."
Why is an electromagnet not use in compass?
An electromagnet in a compass would be influenced by Earth's magnetic field, making the compass less accurate. Additionally, the power source needed for the electromagnet would make the compass less reliable in various conditions, such as when the power source is unavailable or if it fails. Traditional compasses use a magnetized needle that aligns with Earth's magnetic field for consistent and reliable navigation.
How do you get free needle and thread in RuneScape?
Needles and Thread are really cheap anyways seriously... But you can find a free needle in a haystack there is one in the yard near the Windmill in lumbridge, bear in mind that finding one can be hard, but just keep clicking.Here's a little fact I found out with needles: If you use a needle on a cow, you would get a message saying: "the cow would not like that".Needles are sold on the crafting store menu in Al Karid.
