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 0K 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. 4.If the electric current in a coil is doubled the magnetic flux density

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 0K 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. 4.If the electric current in a coil is doubled the magnetic flux density

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter29: Solid-state Electronics

Section29.1: Conduction In Solids

Problem 24SSC

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