Electromagnetism, Magnetism
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | The branch of physics that deals with the relationship between electricity and magnetism.
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| What did OERSTED discover in 1820? | show 🗑
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| show | Coil of wire.
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| Define solenoid. | show 🗑
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| Define electromagnet. | show 🗑
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| What are the four factors that regulate the strength of induced current under the The First Law of Electromagnetics? | show 🗑
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| Define self-induction. | show 🗑
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| show | Inducing current flow through SECONDARY coil by passing varying current through primary coil.
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| Define magnetism. | show 🗑
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| What are the 3 classes of magnets? | show 🗑
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| Name an example of a natural magnet. | show 🗑
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| show | Alnico, Hard steel
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| What are the 3 Laws of Magnetism? | show 🗑
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| show | Zone of influence.
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| show | Ease with which a given material can become magnetized.
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| Define magnetic retentivity. | show 🗑
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| show | High, low
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| show | Low, high
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| What are the 4 magnetic classes of matter? | show 🗑
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| Give examples of ferromagnetic materials. | show 🗑
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| show | Platinum
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| Give examples of nonmagnetic materials. | show 🗑
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| Give examples of diamagnetic materials. | show 🗑
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| show | Unaffected by a magnetic field.
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| show | Weakly repelled from both poles of magnetic field.
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| List characteristic of paramagnetic matter. | show 🗑
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| show | Can be strongly magnetized.
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| show | SPEED that a conductor cuts magnetic lines of force.
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| Name one of four factors that determine electromagnetic induction. | show 🗑
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| Name one of four factors that determine electromagnetic induction. | show 🗑
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| show | NUMBER OF TURNS in conductor if wound into coil.
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| What is an electric motor? | show 🗑
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| What type of rings does a DC motor use? | show 🗑
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| show | Slip rings
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| show | Synchronous and A-C Induction
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| What is a stator? | show 🗑
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| show | Junkyard magnet used to move cars.
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| Describe the synchronous motor. | show 🗑
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| show | Has stator with even number of electromagnets. Has rotor in middle.
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| show | Device converting mechanical energy to electrical energy by electromagnetic induction.
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| show | An accumulation of many atomic magnets with their dipoles aligned.
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| Define magnetic susceptibility. | show 🗑
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| Magnetic field | show 🗑
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| T/F: A magnetic field exists around a wire only while an electric current is flowing. | show 🗑
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| Ammeter | show 🗑
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| show | 1st coil through which varying current is passed.
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| Secondary coil | show 🗑
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| show | Outside, Within
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| show | Device that converts mechanical energy to electrical energy.
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| show | Device that is supplied with electrical current to produce mechanical motion.
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| What type of current does a galvanometer use? | show 🗑
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| What type of current does a dynamometer use? | show 🗑
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| Ammeter | show 🗑
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| Voltmeter | show 🗑
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| show | True
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| What is the purpose of the autotransformer? | show 🗑
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| What is the purpose of a high-voltage step-up transformer? | show 🗑
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| What is the purpose of the filament step-down transformer? | show 🗑
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| The flow of electrons is known as what? | show 🗑
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| show | Decreases
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| show | 90 degrees
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| What happens when a wire moves through a megnetic field? | show 🗑
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Created by:
rad1958tech
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