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1. Materials are deep-seated in human culture. Do you agree with this statement? Why or why not? Give examples of different materials used in different cultures and time periods. Which materials are the most researched/sought-after materials right now? Why?
2. What are the six families of materials described in the book? Give every-day examples of products made from such materials. Identify specific material grade used in making this product. Name a manufacturer that makes this product or the material it is made from.
3. Briefly cite main differences between ionic, covalent and metallic bonding. Give specific examples of materials that demonstrate these types of bonds.
John take a 1kΩ resistor, the 10μf capacitor, and the 10 mH inductor, and one by one connects them across one of the outlets in his dorm room. How much power is dissipated by each component (as a function of time)
Adding dopants to a sample of silicon is found to reduce the Hall coefficient by a factor of 10 and increase the conductivity by a factor of 5. What effect has this dopant addition had on the mean free path
design a logic program that will track the activity for one turnstile. there will be three inputs PHASEA, B and RESET. there will be no output. the program should be able to track 999 total guests.
(a) A Ge bar 0.1 cm long and 100 m2 in cross-sectional area is doped with 1×1017 cm-3 gallium. Find the current at 300 K with 10 V applied. (b) Upon a steady illumination uniform excess carriers are generated in the Ge bar.
A 120V source is connected in parallel with four (4) resistors, all of which are in parallel. The resistors have the ratios 1 : 2 : 3 : 6 (for example 4Ω, 8Ω, 12Ω, 24Ω). The source delivers 288W to the parallel combination.
the current i 2t2 - 1 a 1le t le 3 s is flowing through a certain circuit element. a if the element is a 4 h inductor
A microscope has a 2.70-cm focal length eyepiece and a 0.630-cm objective lens. For a relaxed normal eye (assume a viewing distance of 25.0 cm), calculate the position of the object if the distance between the lenses is 13.5 cm
Consider a MOSFET tansister experiancing pinch-off near thedrain. by the equation I=Qv indicates that the charge density andcarrier velocity must change in opposite directions if the current remains constant
A coax cable has an inducance of 300nH/m and capacitance 53pF/m and carries very high frequency radio waves. Sart with the quantity gamma for transmission line, explain your approximations and find the phase velociy of propagation.
Prepare an Excel graph showing the individual components and summated resultant waveform of the odd harmonic series resulting in an approximate square wave.
Using the switch-resistor MOSFET model, design an invertersatisfying the static discipline for the four voltage thresholds using an n-channel MOSFET with RN=1KΩand VT=1.8v. Recall, RON=RN(L/W).Assume VS=5v and Rsquare for a resistor is 500Ω.
Design a op-amp summer to produce the output voltage Vo=2v11-10v12+3v13-v14. Assume the largest resistor value is 500k ohms, and the input impedance seen by each source is the largest value possible.
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