A | B |
electromagnetism | the relationship between electricity and magnetism |
solenoid | a coil of wire that makes a magnetic field with a current |
electromagnet | a solenoid with a ferromagnetic core |
force | magnet will exert a ______ a wire with a current running through it |
ferromagnetic | Use a stronger _____ material inside a solenoid to increase its strength |
motor | a device that uses an electric current to turn an axle. |
adding more coils | one way to increase an electromagnet's strangth |
magnetic field | flowing electrons generate a |
more current | increases an electromagnet's strangth |
generates | Moving a magnetic field near a solenoid _______ an electrical current. |