Ch5 Magnets and Electromagnets

What do we call the region in which a magnetic force can de detected?

_____________ produce forces of attraction and are located at the ends of a magnet bar.

What is the SI unit for magnetic field lines?

______________ converts electrical energy into mechanical energy.

What are the three most important part of a motor?

• Rotor Coils

• Armature

• Brushes

• Commutator

_______________ converts mechanical energy into electrical energy.

__________________ is basically a theory which states how materials could be a magnet (could be hard or soft magnetic materials)

Hans Christian Oersted is renowned for his observation regarding electromagnets in the year _______________.

Give at least 2 properties of magnets.

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