Download Section 2 – Magnetism from Electricity p.48 A.) The Discovery of

Section 2 – Magnetism from Electricity p.48
A.) The Discovery of Electromagnetism p.48
1.) Electromagnetism – the interaction between
electricity & magnetism
2.) Hans Christian Oersted discovered
electromagnetism
a.) discovered that an electric current produces a
magnetic field
B.) Using Electromagnetism p.49
1.) Two devices that strengthen the magnetic field
are the solenoid & the electromagnet.
2.) Solenoid – a coil of wire with an electric current in
it.
3.) Two ways to strengthen the solenoid’s magnetic
field:
a.) increase the electric current in the wire
b.) increase the number of loops per meter in the
coil
4.) Electromagnet – a coil that has an iron core &
acts as a magnet when an electric current is in the
coil