Electromagnetism
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| show | Earth
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| show | material that attracts or repels other materials
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| show | push or pull on an object
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| show | Tesla
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| show | ability of a material to attract a magnetic field and become magnetized or east of magnetism.
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| How well a material maintains itsmagnetism. | show 🗑
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| show | natural (earth), artificial (iron -man made), Electromagnet (locks on xray tube or fire doors)
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| What are the 4 magnetic classifications of a material? | show 🗑
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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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| Define Diamagnetic. | show 🗑
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| show | coil of wire carrying a current
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| show | coil of wire carrying a current with an iron core in coil
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| show | coil of wire
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| show | mutual induction
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| show | coil of wire with constant potential difference (voltage)= unimpeded current flow; uses single coil - autotransformer
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| show | transformer
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| A autotransformer is used as the _______. | show 🗑
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| show | resistance
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| show | false - self
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| show | autotransformer
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| Anything the RT touches on the control panel is on the _____ side of the high-tension tranformer. | show 🗑
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| show | filament circuit (door bell)
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| show | parallel
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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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| show | b and c
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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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| show | step down transformer
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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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| show | P=IVP=220(3)P=660 watts
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| show | repel, attract
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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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| show | step up (high tension) or step down transformers
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| show | resistance (loss of power due to heat)hysteresis (loss of power due to changing magnetic field)Eddy current (due to AC)
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| Step Up Transformers increase line ______ to kv and decrease _________. | show 🗑
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| show | 6-10v, heat filament,3-5 amps
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| Which has more turns in the 2nd coil?step up or step down transformer | show 🗑
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