 The
Open Door Web Site |
||||||||||||||||||||||||
|
Electricity and Magnetism Measuring the Strength of a Magnetic Field When current flows through a conductor which is in a magnetic field, the conductor experiences a force (unless the current flows parallel to the magnetic field).
................................
Factors affecting the Magnitude of the force Experiments show that:
and, if the current flows at 90° to the field, the constant is called the magnetic flux density (symbol, B).
Flux density is the force per unit current per unit length acting on a conductor placed at 90° to the field. If the conductor is placed at an angle q to the field, then the force is given by:
|
© David Hoult 2009 |
||||||||||||||||||||||
