What is an electromagnet and how does it work? Electromagnets create a magnetic field through the application of electricity. When you introduce the current, either from a battery or another source of electricity, it flows through the wire. This creates a magnetic field around the coiled wire, ...
Since you need an electrical current to operate an electromagnet, where does it come from? The quick answer is that anything that produces a current can power an electromagnet. From the small AA batteries used in your TV remote to large, industrial power stations that pull electricity directly ...
Often, the device is essentially an electromagnet. Why Magnets Stick Magnets are attracted to materials that have unpaired electrons that spin in the same direction. Shutterstock/New Africa If you've read How Electromagnets Work, you know that an electrical current moving through a wire creates...
Because an electric guitar is passive, its signal does not have enough power to drive the power amp directly. One of the interesting things about many electric guitar amplifiers is the use of vacuum tubes. Vacuum tubes have distortion patterns and characteristics that are known and loved by ...
As the poles of the electromagnet flip back and forth, the magnet is able to rotate without interruption. This is a brief explanation of course, so you may want to read How Electric Motors Work for all of the details. As it turns out, the mechanical energy created in an electric motor ...
As the poles of the electromagnet flip back and forth, the magnet is able to rotate without interruption. This is a brief explanation of course, so you may want to read How Electric Motors Work for all of the details. As it turns out, the mechanical energy created in an electric motor ...
When you play music, an electric current flows back and forth through the electromagnet, which causes it to move in and out. This pushes and pulls the attached cone, forming air pressure fluctuations in the surrounding air. We hear these fluctuations as sound. This same system can work in ...
How does an online UPS work? An online UPS is a type of uninterruptible power supply that provides backup power to a computer or electronic device by supplying power from a battery or flywheel when the input power is lost. How long does a UPS last without power? Typically, a UPS will la...
As soon as current flows through the circuit and the electromagnet is activated, generating a magnetic field that attracts a sort of contact and then...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...
How does an ordinary DC motor work?The simple motors you see explained in science books are based on a piece of wire bent into a rectangular loop, which is suspended between the poles of a magnet. (Physicists would call this a current-carrying conductor sitting in a magnetic field.) When...