B-H Curve

A B-H curve is used to show the relationship between magnetic flux density (B) and magnetic field strength (H) for a particular material. When tested experimentally, a ferromagnetic (i.e. strongly magnetic) material such as iron will produce a curve similar to that...

Properties of Magnetic Fields

A magnetic field is found in the area around magnetic materials and current carrying conductors, and has both a direction and a magnitude at each point. A magnetic field can either attract or repel other magnetic objects at a distance. A magnetic field differs in this...

Electric Field Concepts

Electric field strength (E) Electric Flux (Ψ) Electric Flux Density (D) Permittivity (ε) Force between Two Electric Charges (Coulomb’s Law) Electric Potential Energy Related Topics Capacitor Circuits Electrical Electrical and Electronic...

Magnetic Flux Density

Magnetic flux density (B) is the quantity of magnetic flux (Φ) per unit area (A), measured at right angles to the magnetic field. It is measured in either tesla (T) or weber per square metre (Wb/m2) – the former being more commonly used. Magnetic flux...

Right Hand Grip Rule

This rule allows you to predict the direction of the circular magnetic field which is created around a conductor when current flows through the wire. Point your right thumb in the direction of (conventional) current flow, and then curl your fingers around the wire....

Force on a Current Carrying Conductor

If a current carrying conductor is placed at right angles to a magnetic field then a force will be exerted on the conductor, which acts at right angles to both the conductor and the magnetic field. The direction of the force is given using Fleming’s left hand...