As sunspots emerge on the sun's surface close to its equator, their orientations will match the old magnetic field, while ...

To calculate the structural stiffness of a ... were off was that the equations did not take into account the magnetic fields. “We found that certain ratios of the cut’s width and length ...

To investigate, describe and recall how the strength of the magnetic field depends on the current in the coil, the number of turns in the coil and the material used as the core of the coil.

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 ...