Electromagnetism
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| What is the largest magnet? | show 🗑
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| show | material that attracts or repels other materials
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| Force | show 🗑
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| show | Tesla
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| What is magnetic permeability? | show 🗑
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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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| 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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| 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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| Self-induction | show 🗑
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| show | transformer
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| show | kVp selector
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| Ohm is the unit of measure of _______. | show 🗑
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| An autotransformer works off of mutual electromagnetic induction. T or F | show 🗑
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| The _______ sits on the primary side of the high voltage circuit. | show 🗑
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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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| show | b and c
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| Power loss is due to ____.1. varying magnetic field2. heat resistance3. AC current | show 🗑
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| show | hysteresis loss
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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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| show | converts mechanical energy to electrical energy
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| Give examples of types of transformers. | show 🗑
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| What are the two types of transformers? | show 🗑
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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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| Step Down Transformers dereases kV back to _____ to ______ and increase mA to _______. | show 🗑
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| Which has more turns in the 2nd coil?step up or step down transformer | show 🗑
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