Q': choice the correct answer in each of the following1. With rise in temperature the electrical conductivity of intrinsic semiconductor:a. Increaseb. decreasec. Increase and then decreased. decrease and then Increase2. In a semiconductora. There are no free electrons at any temperatureb. There are no free electrons at OKc. Number of free electrons more than thatd. None of the above3.Which of the following characteristics of electrons determines the current ina conductor?(a) Drift velocity alone.(b) Thermal velocity alone.(c) Both drift velocity and thermal velocity.(d) Neither drift nor thermal velocity.4.If the electric current in a coil is doubled the magnetic flux densitya) halvesb) remains unchangedc) doublesd) quadruples5.In a N-type semiconductor, the position of Fermi-levela. Is lower than the center of energy gapb. Is at the center of energy gapc. Is higher than the center of energy gapd. Can be any where6. The energy gap in a semiconductora. Increases with temperatureb. Does not change with temperaturec. Decreases with temperatured. Is zero7. In an intrinsic semiconductor, the mobility of electrons in the conduction bandis:a. Less than the mobility of holes in the valence bandb. Zeroc. Greater than the mobility of holes in the valence bandd. None of the above

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Q': choice the correct answer in each of the following 1. With rise in temperature the electrical conductivity of intrinsic semiconductor: a. Increase b. decrease c. Increase and then decrease d. decrease and then Increase 2. In a semiconductor a. There are no free electrons at any temperature b. There are no free electrons at OK c. Number of free electrons more than that d. None of the above 3.Which of the following characteristics of electrons determines the current in a conductor? (a) Drift velocity alone. (b) Thermal velocity alone. (c) Both drift velocity and thermal velocity. (d) Neither drift nor thermal velocity.

Q': choice the correct answer in each of the following 1. With rise in temperature the electrical conductivity of intrinsic semiconductor: a. Increase b. decrease c. Increase and then decrease d. decrease and then Increase 2. In a semiconductor a. There are no free electrons at any temperature b. There are no free electrons at OK c. Number of free electrons more than that d. None of the above 3.Which of the following characteristics of electrons determines the current in a conductor? (a) Drift velocity alone. (b) Thermal velocity alone. (c) Both drift velocity and thermal velocity. (d) Neither drift nor thermal velocity.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.2P: The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where...

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