If a voltage is applied across the ends of a conductor, a [?] will flow. When a current flows, there is always a field, regardless of whether the material of the conductor is magnetic or not. If the current-carrying conductor is placed in a magnetic field, then there may be a .

For there to be a maximum force, the magnetic field lines must be at to the current. The force may result in movement, which is at 90 degrees to both the current and the magnetic field. This is called the effect.

If the current is parallel to the magnetic field lines, the force is .

If a wire is moved through a magnetic field at 90 degrees to the field lines, a is induced across the ends of the wire. If there is an outside circuit, a will flow. This is called the effect. It doesn't matter whether the magnet or the wire move. A voltage is still induced.

The voltage can be increased by moving the wire , increasing the of the wire, increasing the magnetic field , or by using a coil consisting of two or more .

If the wire is moved to the field lines, the voltage induced is .