2. • In 1832, first demonstrated the use of direct current in an electric motor includes aIn 1832, first demonstrated the use of direct current in an electric motor includes a
switchswitch
The first electromagnet was a piece of iron horseshoe shaped wrapped by a coilThe first electromagnet was a piece of iron horseshoe shaped wrapped by a coil
wound on itself. Sturgeon demonstrated its lifting power 4 kg with a length of 200 gwound on itself. Sturgeon demonstrated its lifting power 4 kg with a length of 200 g
iron wires wrapped circulated through which current from a battery. Sturgeon couldiron wires wrapped circulated through which current from a battery. Sturgeon could
regulate his electromagnet, which marked the beginning of the use of electricalregulate his electromagnet, which marked the beginning of the use of electrical
energy into useful and controllable machines, laying the foundation for large-scaleenergy into useful and controllable machines, laying the foundation for large-scale
electronic communications. This device led to the invention of the telegraph, theelectronic communications. This device led to the invention of the telegraph, the
electric motor, and many other devices based on modern technology.electric motor, and many other devices based on modern technology. In 1832 heIn 1832 he
invented the electric motor commutator.invented the electric motor commutator.
His main invention, the electromagnet, was exhibited in London, and there heHis main invention, the electromagnet, was exhibited in London, and there he
received the silver medal of the Royal Society of Arts and promoted its use.received the silver medal of the Royal Society of Arts and promoted its use.
Continued invented electromagnetic machines, and devoted himself to his deathContinued invented electromagnetic machines, and devoted himself to his death
itinerant lecturingitinerant lecturing
