Electromagnetism
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Earth
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| Define magnetism. | show 🗑
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| show | push or pull on an object
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| show | Tesla
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| What is magnetic permeability? | show 🗑
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| show | Magnetic retentivity
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| show | natural (earth), artificial (iron -man made), Electromagnet (locks on xray tube or fire doors)
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| show | nonmagnetic; ferromagnetic, paramagnetc, diamagnetic
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| Define nonmagnetic. | show 🗑
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| Define Ferromanetic. | show 🗑
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| show | material slightly attracted by a magnet
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| show | material weakly repelled by a magnet
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| What is a solenoid? | show 🗑
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| What is an electromagnet? | show 🗑
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| show | coil of wire
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| Contains a primary coil of wire creating a magnetic field and flow of current with a secondary coil introduced with its own current creating another magneric field. | show 🗑
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| show | coil of wire with constant potential difference (voltage)= unimpeded current flow; uses single coil - autotransformer
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| A _______ increases or decreases voltage. | show 🗑
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| show | kVp selector
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| show | resistance
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| An autotransformer works off of mutual electromagnetic induction. T or F | show 🗑
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| show | autotransformer
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| show | primary
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| The step down transformer is used for the ____. | show 🗑
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| The volt or kilovolt meter is always connected in _____. | show 🗑
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| The ______ is conneced in series. | show 🗑
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| Converts electrical energy to mechanical energy. | show 🗑
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| Which device converts mechanical energy to electrical energy? a) motor b) dynamo c) generator | show 🗑
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| show | 2
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| A varying magnetic field leads to ____. | show 🗑
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| show | 3
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| What reduces kV-voltage (6-10v) and increases mA-amps (3-5 amps)? | show 🗑
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| If you have a transformer with 500 turns in the primary and 250 turns in the secondary coil, a)what is the turns rtio b)Is it a step up or step down transformer? | show 🗑
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| What is the equation for total power? | show 🗑
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| If you have a portable viewbox that runs off 220 v and 3 amp, what is the total power requirement? | show 🗑
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| Like poles _____; unlike poles _____ | show 🗑
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| show | every magnet has a north and south pole
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| Generator (dynamo) | show 🗑
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| show | air core, open core, closed core, shell type
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| What are the two types of transformers? | show 🗑
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| What are the 3 main causes of power loss? | show 🗑
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| Step Up Transformers increase line ______ to kv and decrease _________. | show 🗑
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| Step Down Transformers dereases kV back to _____ to ______ and increase mA to _______. | show 🗑
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| show | step up transformer
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
sr4095
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