7. Each of three insulators forming a string has self-capacitance of "C" farad. The shunt capacitance of each cap of insulator is 0-25 C to earth and 0-15 C to line. Calculate the voltage distribution across each insulator as a pecentage of line voltage to earth and the string efficiency. [ 31-7%, 29-4%, 38-9%; 85-7%]

What is going to happen for the depletion region if the P-type material has more doping in the PN-junction?

(1-5) The mobilites of free electrons and holes in pure Germanium are 0.33 and 0.18m/v-s corresponding values for pure silicon are 0.13 and 0.05 m/v-s respectively. intrinsic conductivity for both the materials Assume n=2.5x 10m for Silicon at room temperature. (1-6) Calculate the donor corcentertion in N-type Germanium having resistivity of 100 q=1.6x 10" c and pa 0.36m/v-s. the Find the values of 10"/m for Germanium and ni=1.5x Sam take

6) You work as an engineer in a company and you have been given the assignment of measuring the electrical conductivity and the band gap (Eg) of a new intrinsic semiconductor material at 20 and 100 °C. You cut this material in the form of a rectangular prism with a length of 30 cm, a width of 1 cm and a thickness of 2 cm, and you applied a potential difference of 1 V by placing electrodes on the faces shown in the figure. In this case, you measure a current of 0.8A at 20 °C and 12A at 100 °C. According to this information a) calculate the electrical conductivity of the material at 20 and 100 °C and b) the band gap of this material. 30 ст 2 ст 1 cm

The conductivity for n-side is 1500 s/m and for p-side is 400 s/m in pn junction, while the conductivity of the pure silicon is 4 × 10-4 s/m. Find the barrier potential at 300°K, if the µn = 2.4µp?

How active components are different from passive electronic components explain with examples. How are electrolytic capacitors constructed? Explain how they are categories as polarized and non-polarized electrolytic capacitors.

Xc 10 ? 100 2 R 20 2 E = 120 V Z

All electronic components are formed from p type and n type materials. What factors determine what kind of components will be formed?

Make a comparative chart related to electrical conduction in materials, that is, comparing metals (and other conductors) / semiconductors / superconductors / insulators. Additional, on another page, an application of each of them

A. Why does the conductivity of a semiconductor and some insulators change with impurity content? Compare this with the behaviour of metallic conductors. B. Discuss the location of the Fermi levels of intrinsic and extrinsic (n-type and p-type) semiconductors in low temperature and high temperature ranges. C. Discuss why the structure of the p-n junction is so important to modern technologies that impact our daily life.