Calculate the conductivity of germanium at 200 deg C
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- I need the answer as soon as possibleIn solid KCI the smallest distance between the centers of a. potassium ion and a chloride ion is 314 pm. Calculate the length of the edge of the unit cell and the density of KCI, assuming it has the same structure as sodium chloride.In a normal conductor heat is generated at a rate I 2R. Therefore a current-carrying conductor must dissipate heat effectively or it can melt or overheat the device in which it is used. Consider a long cylindrical copper wire (resistivity 1.72x 10-8 Ω*m) of diameter 0.75 mm. If the wire can dissipate 80 W/m2 along its surface, what is the maximum current this wire can carry?
- The total number of free electrons is more, the conductivity of the material will be more. Select one: True v FalseConduc-Thor-s. Thor has two square prism conductors that are made of the same ohmic material and with properties indicated below. Conductor Length Cross-Section Side Length Alpha Beta L/2 8/4 Suppose both conductors are subject to the same potential difference AV across their length while keeping their temperatures fixed. Which of the following is the correct relation between the electric currents, I, and Ig, through Aipha and Beta? O A. I = 81, %3D O B. 8I. = I3 Oc. Ia = 413 O D. 4la = I3Please do D, E, and F
- Q2 Silicon is doped with phosphorus at No = 2.00 x 1015 cm-³. The temperature is 77 K. What is the electron concentration?3) The Seebeck voltage for Copper Constantan (Cn) thermocouple is given by the linear relation V = a + bT, where T is the absolute temperature of the hot junction, and a and b are constants. For Cu : a = Calculate the thermoelectric power when the hot junction is at 100 C. 0.6 mV, and b = 0.008 mV/K. For Cn : a = -20 mV, and b -0.056 mV/K. %3DQA (10 KQ) resistor is made of two strips connected in parallel, each one has (40 um) thick, and (6 mm) long. One strip is of intrinsic germanium and has (0.5 mm) wide. Determine the width of other strip if it made of Ge., doped with (10²') donor atom/cm,at the working temperature. The intrinsic carrier density of Ge, is (2.5x10"m), and the electron and hole mobilities are (0.4 m/V.Sec. , and 0.2 m/V.Sec.) respectively.
- b)Super conductor aluminum has critical temperature of 7.26K at zero magnetic fields and a critical field of 5×10^5 A/m at zero Kelvin. Find the critical magnetic field at 3K……A type S thermocouple uses a 0 degree C reference junction. What voltage (in mV) will be generated when the junction temperature is 1,272 degrees C?Question-5. A semiconductor has an electrical conductivity of 20 (N-m)', whereas the electron and hole mobilities are 0.04 and 0.03 m2/V-s, respectively. The density of the semiconductor is 4.62 g/cm³. The electrical charge of an electron (e) is 1.6 ×10-19 C. The atomic weight of the semiconductor is 59.72 g/mol. Avogadro constant (NA) is 6.023 × 1023 atoms/mol. (a) Compute the intrinsic carrier concentration for the semiconductor at room temperature (25 °C). (b) Compute the number of free electrons per atom for the intrinsic semiconductor at room temperature.