Calculate the maximum temperature allowed for the silicon if the intrinsic carrier concentration is 1×1012 electrons/m. 300 K 360 K 364 K 382 K

A piezo electric crystal having a thickness of 2.45mm and a voltage sensitivity of 0.018Vm/N is subjected to pressure of 20 * 10^3 Pa. what is the output voltage?

4. Compare and contrast electric domain walls to magnetic Bloch walls. Consider such items as wall thickness, direction of polarization or magnetization, and factors that influence on each.

2. What is the principle of RAMAN spectroscopy. Why is RAMAN spectroscopy considered a complement to IR spectroscopy, give examples of materials where it is used very commonly.

A charged nonconducting rod, with a length of 2.52 m and a cross-sectional area of 4.76 cm², lies along the positive side of an x axis with one end at the origin. The volume charge density p is charge per unit volume in coulombs per cubic meter. How many excess electrons are on the rod if p is (a) uniform, with a value of -4.66 µC/m³, and (b) nonuniform, with a value given by p= bx², where b = -2.18 µC/m²? (a) Number i (b) Number i Units Units

i need the answer quickly

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