Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Types of Charge Carriers
A carrier is a type of object which carries a particular thing from one point to another point. For instance, people use different vehicles from one place to another, and the vehicle carries those people and acts as a carrier.
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Answer 1&2. Explain in 3 or more sentences, please. Thanks!

1. Besides tungsten, what other materials are used for cathodes in vacuum tubes?

2. What is the advantage of directly heated cathodes?

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