b. How the resistivity of Ge does varies compare with that of Si at (a) very low temperature and (b) room temperature? Explain in short using the basic concepts of band theory of solids considering Ge has a band gap of 0.68 eV and Si has band gap of 1.1 eV.

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Q: 2. we S 50° 18m ->E

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Q: 33

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Q: 65. Find the angles that vector D = (2.01 – 4.0j +k)m makes with the x-, y-, and z- axes.

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Q: 4. Write each combination of vectors as a single vector. See figure below. (a) PQ+QR (b) RP+ PS (c)…

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Q: Six vectors are shown below. ン Select all vectors which have the same magnitude.

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Q: The square loop of wire in magnetic field B (B = (Be/a)(zi + xk)} is in the x-y plane and its center…

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Q: F. cos 0 ·d =

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Q: i.j= Ok D-к 00 1 0 Do

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Q: The loop rule applied to loop abda will give a. 12-18.0 I+ 6.00 I=0 b. 12-18.0 I1-6.00 I2 0 c. 6.0 +…

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