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# 11 - ECTE172 Introduction to Circuits and Devices Spring...

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ECTE172 Introduction to Circuits and Devices Spring 2007 Tutorial 5 ( ) shows the chapter and problem number from the textbook Boylestad and Nashelsky, 9th Edition. Some questions have been sightly modified and/or adapted. 1. (1.7) Describe the difference between n-type and p-type semiconductor materials. 2. (1.8) Describe the difference between donor and acceptor atoms. 3. (1.9) Describe the difference between majority and minority carriers. 4. (1.13) Describe in your own words the conditions established by forward- and reverse- bias conditions on a p-n junction diode and how the resulting current is affected. 5. (1.24) What is the one important difference between the characteristics of a simple switch and those of an ideal diode? 6. (1.25) Determine the the static or dc resistance of the commercially available diode of Fig. 1.15 at a forward current of 2mA. 7. (1.27) Determine the the static or dc resistance of the commercially available diode of Fig. 1.15 at a reverse voltage of -10V using the equation using the equations R d = V d /I d . How does it compare with the value determined at at a reverse voltage of -10V?

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