Model shows spinning neutron stars gain enormous magnetic fields
An international team of scientists has modeled the formation and evolution of the strongest magnetic fields in the universe.
BBC1y
The motor effect - Higher
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 ...
BBC3y
Magnets and magnetic materials
A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...
Space.com21d
The sun's magnetic field will flip soon. Here's what to expect.
The reversal could actually have a beneficial effect on Earth. The sun is on the verge of a significant event: a magnetic field reversal. The sun undergoes such a reversal every 11 years ...