Is a eletromagnet with a six volt lantern battery really powerful or not?
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!
A solenoid is an electromagnet An electromagnet is a solenoid with an iron core
Yes. That's really the only way you have of changing thestrength of the electromagnet while it's operating.
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.
i really don't know at all maybe its a candle or something
well it really depends on which experiment you are carrying out, but usually no.
The cause of the Great Chicago Fire remains unknown.
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.
they are really powerful because they can damage any thing
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.
because when the first lantern gets lit all the people then know that its halloween!
Yes, the starter for one, and really any electrical motor in the car.