Electricity and Magnetism
Electricity and magnetism untangles the mysterious properties of magnets, and examines what electricity really is. It delves into the past to reveal some of the most amazing (and sometimes accidental) historical breakthroughs, as well as considering dramatic developments that will radically affect our lives in the 21st century.
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alternating current Ampere angle appliance armature atom attract balloon bar magnet bicycle light brush building cables cardboard changes direction chemical energy compass needle copper cork Creating a magnet current electricity current flows Diagram showing disc Earth electric current electric guitar electric motor electrical cells electrical charges electrical circuit electrical energy electricity and magnetism electrolyte electromagnet electrons ends English scientist field lines Fixed magnet flux lines fossil fuels fuse inches induces inside iron filings italic type joule light bulb lightning conductor loops loudspeaker machine Machine heads magnetic field move negative charge negative ions negative terminal neutral north pole nuclear opposite poles paper clips parallel circuit pile plugs positive charges power stations primary coil produce protons repel resistance rubbed secondary coil series circuit solenoid south pole spark spin static charge substances switch tape head temperature transformers turbine turn units called voltage voltaic pile zinc