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12 Cards in this Set
- Front
- Back
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_______ magnetic poles attract each other, and like poles repel each other
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unlike
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materials that can be , magnetized are called
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ferromagnetic
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when there is current through a conductor, it produces an ______ _______ around the conductor
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electromagnetic field
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you can use the _____ _____ ______ to establish the direction of the electromagnetic lines of force around a conductor
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left hand rule
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an ________ is basically a coil of wire around a magnetic force
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electromagnet
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when a conductor moves within a magnetic field, or when a magnetic field moves relative to a conductor, a ______ is induced across the conductor
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voltage
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the faster the _____ ______ between a conductor and a magnetic field, the greater is the _____ ______
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relative motion
induced voltage |
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_____ _____ _____ use current to sense the presence of a magnetic field
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hall effect sensors
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______ ______ convert mechanical power to dc electrical power
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dc generators
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the moving part of a generator or motor is called the ______; the stationary part is called the ______
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rotor
stator |
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________ convert electrical power to mechanical power
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dc motors
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brushless dc motors use a ______ _______ as the rotor, and the stator is the ______
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permanent magnet
armature |
