Semiconductors: A simple junction transistor consists of three semiconductor sections consisting of
A. only pnp semiconductors.
B. only npn semiconductors.
C. either pnp or npn semiconductors.
D. none of the given combinations.
Answer: C
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The reason that we can calculate the change in entropy of a system is that
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A solid aluminum cube rests on a wooden table in a region where a uniform external electric field is directed straight upward. What can we say concerning the charge on the top surface of the cube?
A) The top surface is neutral. B) The top surface is charged negatively. C) The top surface is charged positively. D) The top surface's charge cannot be determined without further information.
Which of the following statements is not true about wave packets and their use in describing particles?