6c: Electromagnetism

A magnetic field is produced…

• around an electron.
• around a charge.
• around a wire.
• when current flows.

A force is produced when magnetic fields…

• overlap
• interact
• interfere
• touch

For Flemming's left hand rule: Thumb represents the direction of the ________

• magnetic field
• Current
• Force
• Parallel

For Flemming's left hand rule: First finger represents the direction of the ________

• magnetic field
• Current
• Force
• Parallel

For Flemming's left hand rule: Second finger represents the direction of the ________

• magnetic field
• Current
• Force
• Parallel

How do you build an electromagnet?

• Wrap a coil of wire around an iron core, pass a current through the core.
• Pass a current through a coil of wire, wrapped around an iron core
• Place a coil of wire in a magnetic field, and pass a current through the coil.
• Use a bar magnet

How do you build a motor?

• Wrap a coil of wire around an iron core, pass a current through the core.
• Pass a current through a coil of wire, wrapped around an iron core
• Place a coil of wire in a magnetic field, and pass a current through the coil.
• Use a bar magnet

When magnetic fields interact…

• a force is produced.
• a current is produced.
• a charge is produced.
• opposite charges are attracted.