6cElectromagnetism

Syllabus objectives

• 6.8know that an electric current in a conductor produces a magnetic field around it
• 6.9describe the construction of electromagnetsSeparate Physics only
• 6.10draw magnetic field patterns for a straight wire, a flat circular coil and a solenoid when each is carrying a currentSeparate Physics only
• 6.11know 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 fieldSeparate Physics only
• 6.12understand 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
• 6.13use the left-hand rule to predict the direction of the resulting force when a wire carries a current perpendicular to a magnetic field
• 6.14describe how the force on a current-carrying conductor in a magnetic field changes with the magnitude and direction of the field and current