It might sound like a strange way to stop a train, but it really does work. You'll find the proof of it in many rollercoaster cars, which use magnetic brakes like this, mounted on the side of the track, to slow them down. Artwork: Simplified concept of a linear Eddy-current brake....
They can induce current in wire and supply torque for electric motors. Maglev trains use magnetic propulsion to travel at high speeds, and magnetic fluids help fill rocket engines with fuel. Earth's magnetic field, known as the magnetosphere, protects it from the solar wind. According to Wired...
They can induce current in wire and supply torque for electric motors. Maglev trains use magnetic propulsion to travel at high speeds, and magnetic fluids help fill rocket engines with fuel. Earth's magnetic field, known as the magnetosphere, protects it from the solar wind. According to Wired...
How is a magnetic field produced in an atom? What can produce magnetic fields? How to calculate the magnitude of a magnetic field? What does a changing magnetic field induce? What is a transverse magnetic field? How does the outer core produce the Earth's magnetic field?
This paper is meant to be a comprehensive how to guide to help measure voltage, measure current, and measure power with computer based instrumentation.
Question: How can a current loop be used to determine the presence of a magnetic field in a given region of space? Magnetostatics: The current is the stream of electrons flowing in a conductor. These electrons are negative charge carriers which produce...
They both work on the principle of using movement to induce current thanks to magnetic fields. But, as the names imply, in one the magnet moves to induce current while in the other the coil does so and the magnet is fixed. So, assuming we’re talking about a moving magnet cartridge, ...
If you place a second coil of wire in the magnetic field you've created, the field can induce a current in the wire. This is essentially how a transformer works, and it's how an electric toothbrush recharges. It takes three basic steps: Current from the wall outlet flows through a coi...
An inductor is basically just a coil of wire. The inductance of an inductor is a measure of its ability to store energy in the form of a magnetic field; when the current in the coil changes, it follows from Lenz's Law that the magnetic field will induce motion of charges in such a...
Draw the pattern of magnetic field lines around a current-carrying straight conductor. How does the strength of the magnetic field produced change : (i) with the distance from the conductor ? (ii) with an increase in current in a conductor ?