Definitions
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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Electromagnetic Relay | Electromechanical switch made up of an electromagnet and a set of contacts
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Electromagnetic Induction | Where an emf is induced by a change in the magnetic flux linking a circuit
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Induction Coil | Electronic device used to get a very high voltage from a low voltage d.c. source
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Rectification | Conversion of alternating current to direct current
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Light Emitting Diode | Semiconductor device that emits light when current flows through it
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Photodiode | Semiconductor device used to detect the presence of light or to measure its intensity, or as part of a light sensitive relay
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Logic Gate | Electronic circuit used to calculate operations in Boolean algebra
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Transistor | Semiconductor device with three terminals which can act as a switch, a voltage or current amplifier, a voltage inverter or a NOT logic gate
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
conordesmond
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