Edexcel GCSE Design and Technology · 1DT0
Specification 2.4.1 · Paper 1
Revise: Forces and StressesAn electromagnet uses electric current to produce a magnetic field. A coil with an iron core can produce a strong magnetic attraction, as used by scrapyard cranes to lift suitable metal scrap. The lifting force is magnetic, but the crane’s supporting parts must still carry the resulting mechanical load.