Question Set

1. Consider the following statements: The conductivity of a metal has negative temperature coefficient since: The electron concentration increases with temperature.The electron mobility decreases with temperature.The electron-lattice scattering rate increases with temperature. Which of the above statements is/are correct?





Ask Your Doubts Here

Type in
(Press Ctrl+g to toggle between English and the chosen language)

Comments

Show Similar Question And Answers
QA->Two statements are given followed by two conclusions I and II. You have to consider the two statements to be true even if they seem to be at variance from commonly known facts. You have to decide which one of the given conclusions is definitely drawn from the given statements. Statement : All virtuous persons are happy. No unhappy person is virtuous. Conclusions : I. Happiness is related to virtue II. Unhappy person is not virtuous.....
QA->When wavelength increases the rate of scattering?....
QA->A pendulum clock is set to give correct time at the sea level. This clock is moved to a hill station at an altitude of 2500m above the sea level. In order to keep correct time on the hill station, the length of the pendulum?....
QA->The process by which water diffuses through a semi-permeable membrane from a region of higher concentration of a solution to a region of lower concentration of a solution?....
QA->A statement followed by two assumptions I and II is given. You have to consider the statement to be true even if it seems to be at variance from commonly known facts. You are to decide which of the given assumptions can definitely be drawn from the given statement. Indicate which one of the four given alternatives is correct ? Statement : If more encouragement is given to Sports, Indians will win more gold medals at the Olympic Games. Assumptions : I. Indians do not win gold medals. II. More enc....
MCQ->Consider the following statements: The conductivity of a metal has negative temperature coefficient since: The electron concentration increases with temperature.The electron mobility decreases with temperature.The electron-lattice scattering rate increases with temperature. Which of the above statements is/are correct?....
MCQ->An n type semiconductor is illuminated by a steady flux of photons with energy greater than the band gap energy. The change in conductivity Δσ obeys which relation? [ Here, e is the electron charge, μn electron mobility, μp hole mobility, Δn (Δp) is the excess electron (hole) density ].....
MCQ->Consider the following statements regarding tensile test diagrams for carbon steel with varying carbon contents : As the carbon content increases 1. the ultimate strength of steel decreases 2. the elongation before fracture increases 3. the ductility of the metal decreases 4. the ultimate strength increases. Of these statements :....
MCQ->The current density J, free electron mobility μn, hole mobility μp , magnitude of free electron and hole concentration ni electric field E and charge on electron e, in intrinsic semiconductor are related as....
MCQ->Consider the following statements, regarding an OP AMP: All types of negative feedback reduce non-linear distortion.All types of negative feedback reduce the output offset voltage.Non-inverting (current and voltage) feedback increases the input impedance.Inverting (current and voltage) feedback decreases input impedance. Which of the above statements is/are correct?....
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use | Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions
Question ANSWER With Solution