know that an electric current in a conductor produces a magnetic field around it

describe the construction of electromagnets

draw magnetic field patterns for a straight wire, a flat circular coil and a solenoid when each is carrying a current

know that there is a force on a charged particle when it moves in a magnetic field as long as its motion is not parallel to the field

understand why a force is exerted on a current-carrying wire in a magnetic field, and how this effect is applied in simple d.c. electric motors and loudspeakers

use the left-hand rule to predict the direction of the resulting force when a wire carries a current perpendicular to a magnetic field

describe how the force on a current-carrying conductor in a magnetic field changes with the magnitude and direction of the field and current