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15 Cards in this Set
- Front
- Back
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electromagnet
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a solenoid with a ferromagnetic core.
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galvanomer
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a device that uses an electromagnet to measure small amounts of current.
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electric motor
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a device that uses an electromagnet to turn an axle.
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magnetic force
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the force a magnetoc field exerts on a magnet, on a ferromagnetic material, or on a moving electric charge.
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magnetic pole
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a region on a magnet where the force produced by the magnet is strongest.
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magnetic field
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a field in a region of space that exerts magnetoc forces; a field produced by magnets, by changing electric fields, or by moving charges.
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magnetosphere
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the area surrounding earth that is imnfluenced by earths magnetic field.
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ferromagnetic material
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a material that can be magnitized because it contains magnetic domains.
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magnetic domain
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a region that has a large number of atoms with aligned magnetic fields.
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solenoid
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a coil of current-carrying wire that produces a magnetic field.
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electromagnetic force
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a force associated wioth charged particles, which has two aspects, electric force and magnetic force.
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turbine
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a device with fanlike blades that turn when pushed, for example, by water or steam.
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transformer
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a device that increases or decreases the voltage of two linked AC circuts.
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generator
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a device that converts mechanical energy into electrical energy by the relative motion of a coil of wire with respect to a magnetic field.
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electromagnetic induction
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the process of generating a current by moving an electrical conductor relative to a magnetic field.
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