Calculate the conductivity of intrinsic Si at 27oC and write your answer in 1/(Ω.m).
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Calculate the conductivity of intrinsic Si at 27oC and write your answer in 1/(Ω.m).
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- 9nm 65.53 µJ 47.62 J 8nm 23.79 J P A B C D 3.0x10 17C --5.0x10-17C 2.0x10-17C -4.0x10-17 C Ⓒ 19.72 µJ 6nm What is the total work done for moving a unit positive charge from infinity to point P? 7nm2 Curront is definad as the rate of charge flow. It a charge offo.0065 Golombs passes a given point in a conductor in loo millisesands, Calcutate the? a) current in amperes (Hint: I=) b) Current in milli ampares- a.given Ans: a)o.065 A b) 65 mAc. I=0.5+0.25v  to what type of elements each equation corresponds?
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- We want to investigate how the field strength will be with air as dielectric and with steatite. A plate capacitor is placed in a 24 kV network between phase and ground. The relative permittivity of air is &=1 and for steatite &-6. The plate capacitor has area = 1m². The distance between the electrodes is 2 mm. Ep = 8.854-10-12 F/m A=1m² d=2mm a) Calculate the maximum field strength in the plate capacitor. (Answer: 9.8kV/mm) b) What is the capacitance of the capacitor if we use steatite? (Answer: C = 26.6nF)Aluminum has a resistivity of 10.6×108 Nm at 20°C. What will the resistivity of Aluminum when then temperature is increased to 1000°C. (Take a as 2.65×10-³)26/a (i) In a 39KV overhead line, there are 3 units in the string of insulators. If the capacitance between each insulator to pin and earth is 20% of self-capacitance of each insulator. Find the distribution of voltage over three insulators and string efficiency