Numerade

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Two sides and an angle (SSA) of a triangle are given. Determine whether the given measurements produce one triangle, two triangles, or no triangle at all. a=44.8 c=35 A=110 degrees

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A ___________ provides abstraction that allows programs to read and write data the same way, whether it be to a hard drive, flash drive, or other disk. Group of answer choices file system disk identifier partition chunk

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From the two-cell stage until differentiation is complete, a developing conceptus is known as a/an: O Zygote O Fetus O Embryo O Morula

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Refer to your drawing of the liver. Explain why the liver has such a rich blood supply.

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Ecuador can produce 10 cars and 2 units of soy while Panama can produce 30 cars and 10 units of soy. What country should focus on soy production and why? A. Panama because they have the lower opportunity cost in terms of car production. Their opportunity cost with respect to car production is 5 units of soy. B. Panama because they have the lower opportunity cost in terms of soy production. Their opportunity cost with respect to soy production is 3 cars. C. Ecuador because they have the lower opportunity cost in terms of soy production. Their opportunity cost with respect to soy production is 5 cars. D. Panama because they have the lower opportunity cost in terms of car production. Their opportunity cost with respect to car production is .20 units of soy.

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Under which scenario would you expect group selection to be most powerful? A. Migratory birds whose population size is large, and who randomly mate without local breeding B. Conifers that distribute their pollen over a wide area via wind dispersal C. Groups of salmon migrating upriver to spawn, after spending several years mixed together in the ocean D. Colonies of rodents that rarely exchange members between groups

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Question 3 (1 point) A constant-voltage source can be represented by a voltage source in parallel with a resistor. True False

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Write the equation of the line in slope-intercept form that passes through the points (6,-1) and (8,2)

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Text: Modern Control Find the A and B matrices of the linear state equation when the states and inputs are defined as follows: x = [r s p q]^T (transpose) u = [u1 u2 u3 u4]^T Here, r dot = p s dot = q p dot = Rz [g3, -g2, 1/m*u1 - g]^T q dot = Identity matrix^(-1) [u2, u3, u4]^T. Please show how to solve it with details and clear steps. I would like to learn from you. Thank you for helping me.

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2. (20 pts) Describe and explain drift current and diffusion current in a PN junction in thermal equilibrium. What causes each? In which directions are the electrons, holes, electron current, and hole current flowing for each effect? What is the net current? Assume the built-in E-Field points to the left. Use a diagram. Then describe what changes when an electric field is applied, positive side on the N terminal. Describe what happens when the magnitude of that field is reversed. 3. (10 pts) Describe the how the Hall Effect it is used to measure whether a semiconductor material is n-type or p-type. Sketch a diagram and show the critical measurements. 4. (10 pts) Describe how the hot point probe uses diffusion to determine the type of semiconductor material. 5. (20 pts) Explain the concept of electron and hole mobility. How is mobility affected by temperature? Impurity concentration? How and why is hole mobility different than electron mobility? Mobility is related to conductivity. Why does conductivity increase with increased doping even though mobility decreases? 6. (20 pts) Describe why the intrinsic carrier concentration changes with temperature. This would include from very cold temperatures to 600K+ temperatures. Why does an extrinsic semiconductor become intrinsic above ~ 500K? Draw a graph and label it carrier concentration vs. temperature. 2017 06 EE 3323 - Electronic Devices - Potential Discussion Page 2

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diane b.