Term
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Definition
| the process of converting AC to DC |
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Term
| the process of converting AC to DC |
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Definition
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Term
| Device which converts mechanical energy to electrical energy |
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Definition
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Term
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Definition
| device the converts mechanical energy to electrical energy |
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Term
| The maximum emf and current are induced in a conductor when: |
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Definition
| the armature is at a right angle to the lines of force |
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Term
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Definition
| component of a DC generator |
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Term
| the auto transformer operates on the principle of: |
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Definition
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Term
| the generator is an expanded practical application of ________ experiments. |
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Definition
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Term
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Definition
| a coiled conductor carrying current |
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Term
| a coiled conductor carrying current |
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Definition
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Term
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Definition
| the number of pulses occurring per second in a DC circuit |
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Term
| the number of pulses occurring per second in a DC circuit |
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Definition
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Term
| device which varies the voltage to the primary side of the x-ray transformer |
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Definition
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Term
| where all rectifying devices are located |
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Definition
| between the secondary side of the transformer and tube |
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Term
| the emf induced in any secondary coil is: |
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Definition
| directly related to the number of turns in the coil that links with the magnetic flux |
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Term
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Definition
| turns secondary: turns primary |
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Term
| swirling currents set up in the core of the transformer |
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Definition
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Term
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Definition
| swirling currents set up in the core of the transformer |
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Term
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Definition
| the quality of the x-ray beam |
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Term
| the material that makes up solid state rectifiers |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| factors which affect the magnitude of the induced current |
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Definition
- number of flux lines
- angle of interaction
- strength of magnetic field |
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Term
| The principle behind the operation of a motor was based on experiments by: |
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Definition
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Term
| The type of motor used to cause the anode to rotate |
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Definition
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Term
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Definition
| A device that is capable of varying voltage and amperage over a circuit and operates on mutual induction. |
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Term
| A device that is capable of varying voltage and amperage over a circuit and operates on mutual induction. |
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Definition
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Term
| The type of transformer that loses power in the form of leakage flux |
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Definition
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Term
| The coils of a transformer are submerged in oil to provide: |
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Definition
- Insulation between the coils during operation
- A means to dissipate heat during operation |
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Term
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Definition
| Transformer loss caused by the rearrangement of magnetic domains in the core which leads to production of heat in the core |
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Term
| Transformer loss caused by the rearrangement of magnetic domains in the core which leads to production of heat in the core |
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Definition
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Term
| the x-ray tube most operate on ____ current. |
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Definition
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Term
| The standard current produced in the United States |
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Definition
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Term
| The component of a motor which turns within a series of electromagnets |
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Definition
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Term
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Definition
| the component of a motor which turns within a series of eelectromagnets |
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Term
| the negative terminal of an x-ray tube |
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Definition
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Term
| The atomic diagram most frequently used to represent the atomic structure of an atom was proposed by: |
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Definition
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Term
| The amount of work the current can do per second |
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Definition
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Term
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Definition
| the amount of work the current can do per second |
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Term
| Electromagnetic induction can be accomplished by: |
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Definition
1. moving a wire thru a magnetic field
2. varying the strength of a magnetic field over a stationary wire
3. suspending a closed circuit within a fluctuation magnetic field |
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Term
| Who discovered the experimental link connecting electric and magnetic forces? |
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Definition
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Term
| The primary coil of the transformer |
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Definition
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Term
| The max amount of emf and current is induced when an armature lies at a ______ angle. |
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Definition
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Term
| Which type of curve represents alternating current? |
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Definition
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Term
| the structure found on a DC generator that is not found on an AC generator |
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Definition
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Term
| transformers operate on _______ current |
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Definition
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Term
| electric current is measured in units of: |
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Definition
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Term
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Definition
| the force that pushes electrons across a circuit |
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Term
| the force that pushes electrons across a circuit |
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Definition
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Term
| the device that can change the potential difference in AC current |
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Definition
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Term
| a transformer operates on the principle of: |
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Definition
| electromagnetic mutual induction |
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Term
| the part that moves in the operation of a generator |
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Definition
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Term
| Allows the technologist to achieve various penetrating powers across the x-ray tube |
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Definition
| autotransformer / kV selector |
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Term
| the exposure factor that controls the intensity of the radiation produced |
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Definition
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Term
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Definition
| the number of electrons moving across the tube |
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Term
| the number of electrons moving across the tube |
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Definition
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Term
| What material is the filament composed of? |
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Definition
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Term
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Definition
| the process of heating a metal to incandescence for the liberation of electrons |
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Term
| the process of heating a metal to incandescence for the liberation of electrons |
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Definition
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Term
| The focusing cup is composed of what material? |
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Definition
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Term
| The wave forms of which 2 types of rectification will result in identical curves? |
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Definition
| self half-wave and half-wave |
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Term
| the target of the x-ray tube is made out of which material? |
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Definition
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Term
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Definition
| Begins the exposure at a high amperage and then decreases it throughout the exposure |
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Term
| Begins the exposure at a high amperage and then decreases it throughout the exposure |
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Definition
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Term
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Definition
| the opposition to the flow of current in a DC circuit |
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Term
| the opposition to the flow of current in a DC circuit |
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Definition
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Term
| the number of rectifying devices incorporated into a circuit to accomplish full-wave rectification on a single phase unit |
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Definition
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Term
| The scientist whose experiments laid the groundwork down for the operation of the generator. |
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Definition
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Term
| the device that operates on EM self-induction |
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Definition
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Term
| another name for a thyristor |
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Definition
| silicon-controlled rectifier |
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Term
| an atom that loses an electron |
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Definition
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Term
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Definition
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Term
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Definition
- aircore
- open core
- closed core
- shell type |
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Term
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Definition
| has no iron core in the center |
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Term
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Definition
2 EMs, side by side
subject to leakage flux |
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Term
| efficiency of transformers |
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Definition
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Term
| Types of electrical power losses |
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Definition
- copper losses
- hysteresis loss
- eddy currents |
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Term
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Definition
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Term
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Definition
| heat produced by constant rearrangements of the magnetic domains of the core |
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Term
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Definition
| heat produced in the core due to swirling currents set up in the core by changing magnetic fields |
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Term
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Definition
- half wave rectification
- full wave rectification
- self rectification |
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Term
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Definition
| suppress the negative half of the AC cycle |
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Term
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Definition
| change the negative half into a positive |
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