Asked in Electronics EngineeringBatteries
Is a electromagnet with a six volt lantern battery really powerful or not?
Asked in Consumer Electronics, Physics
Does a electromagnet work without a battery?
Electro Magnets can work without battery power, hook up a really powerful solar panel and a resister to circulate an even current, add strands of copper wire and coil them around a tube to make them circular. hook them up to the solar panels to make the electro magnet's power circulate through the wire!! I tried it and its fun!
Asked in Circuits
Can the strength of an electromagnet be changed by changing the voltage of the Power Source?
Asked in Building and Carpentry
Is Makita LXT tools more powerful then Dewalt XRP tools?
DeWalt XRP is just a battery. It stands for "Extended Run-Time Performance" It just means it has a longer lasting battery, not that it's really more powerful, but the good batteries are generally put on the better DeWalt tools. The voltage of the battery is going to be the major limit to how much power it has. The advantage of the LXT tools is the power to weight ratio the LXT is 18 volt with the weight of 12 volt tools. Its not more powerful in over all power but it is more powerful for its weight class.
Asked in Science Experiments
Are there variables hard to control in an electromagnet experiment?
Asked in Magnetism, Circuits, Metal and Alloys
Why are there more thumbtacks attached in electromagnet b as compared to electromagnet a?
I'm having a lot of trouble seeing the picture that goes along with this question in the book, so I'll have to take a wild guess based on no information. My guess is that electromagnet 'b' has more current flowing in its wire coil than electromagnet 'a' has. Another possibility is that the current through both coils is the same, but the coil of electromagnet 'b' is wound with more turns of wire than the coil of electromagnet 'a' is. It's just a guess. To be sure, I really need to see that picture.
Asked in Cars & Vehicles
An electromagnet is needed in order for a car to run?
Can you really stored energy in battery for longer use?
Asked in Inventions, Physics, Research Papers
Where are electromagnets found?
An electromagnet is a piece of metal that can be affected by magnetism (usually iron) that is wrapped in a electric conducting thread or wire (usually copper wire.) A really easy way to make an electromagnet yourself is to take a iron nail and wrap it in some copper wire. Then just connect the two ends of the wire and connect it to a AA battery. Test it by using the end of the nail to pick up some paper-clips and such.
Asked in Physics, Electricity and Magnetism, Magnetism
How is electromagnet the same as permanent?
An electromagnet is only magnetic while current is flowing through the coils. A permanent magnet is always magnetic, and does not need electricity. An example of an electromagnet at work is in a metal scrape yard, where a large electromagnet is used by a crane operator to lift ferrous metals into a crusher (scrapped cars, for instance). The metal drops into the crusher when the electricity is switched off by the crane operator. Therefore, they are only really similar when both are magnetised.