2015-08-21
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| Table A | Table B |
| 1. rectifier 2. electronics 3. voltage 4. detector | a. The branch of physics and technology concerned with the design of circuits using transistors and microchips, and with the behavior and movement of electrons in a semiconductor, conductor, vacuum, or gas. b. An electromotive force or potential difference expressed in volts. c. An electrical device that converts an alternating current into a direct one by allowing a current to flow through it in one direction only. d. A device or instrument designed to detect the presence of a particular object or substance and to emit a signal in response. |
SPEAKING
16. In groups draw a circuit of a diode and describe it. Start your description like this: This is a cathode. Its function is …. And this is a plate …
Summarize the text “Diodes” in 150 words paying special attention to the highlighted verbs in Present Simple.
