Class practical: a spectacular demonstration showing how magnetic fields interact to produce forces on wires.
Demonstration: to demonstrate the motor effect in a wire carrying an electric current.
Demonstration: the catapult field seen when two magnetic fields interact can reveal the presence of the Earth's magnetic field...
Class practical: this effect is the basis of all electric motors.
Demonstration: if students have built their own model electric motor, it is useful if they can see a commercial motor doing a...
Class practical: students will be surprised how simple it is to make a loudspeaker, and are likely to remember their need for...
Class practical: a moving coil meter makes use of the catapult field.
Demonstration: the current balance is a useful meter. Sophisticated versions of it are used in very sensitive current...
Class practical: a motor makes use of the catapult field.
This demonstration shows that the forces of attraction between two magnetically interacting objects are equal and opposite...
In this activity students build a simple motor. You can use it to illustrate Fleming's left hand rule.
In this activity, students try out different ways to find the strongest magnet. You can use it to develop experimental skills.
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