Researchers show that Cartan's First Structure Equation ... magnetic fields. This work can help make new concepts more understandable by employing more familiar frameworks. A fundamental goal of ...

With a new measurement imminent, the Courier explores the experimental results and theoretical calculations used to predict ...

A fundamental goal of physics ... between the equations for defects in a crystalline lattice and a well-known formula from electromagnetism. They demonstrated that the fields representing the ...

American researchers have measured a tiny electrical voltage by exploiting Earth's magnetic field in the planet's rotational motion. This discovery, though modest, revives a scientific debate ...

Experiments suggest an unusual magnetic material could help harness energy from Earth’s rotation. But not everyone is ...

If you took introductory physics, you learned about the “fundamental ... We have this same problem with electric and magnetic fields. Depending on your reference frame, what appears to be ...

In physics, symmetry can provide vital information ... This is because the magnetic field equations are symmetric with regard to the process of swapping the N and S poles. In recent years, the ...

To calculate the force on a wire carrying a current at right angles to a magnetic field, use the equation: 2 A flows through a 50 cm wire. Calculate the force acting on the wire when it is placed ...

As with all currents, the induced current creates a magnetic field around itself. Note that this magnetic field opposes the original change. For example, if a magnet is moved into a coil of wire ...