Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 19 - DC Circuits - Questions: 19

Answer

In an analog ammeter, the internal shunt resistor is a small resistance. It is in parallel with the galvanometer, so the ammeter has very small resistance. In an analog voltmeter, the internal shunt resistor is a large resistance. It is in series with the galvanometer, so the voltmeter has very large resistance.

Work Step by Step

Compare Figure 19-31 (an analog ammeter) to Figure 19-32 (an analog voltmeter).
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