Answered: 5. What shunt resistance is needed to…

5. What shunt resistance is needed to convert a microammeter with a full scale range of 10 µA and an internal resistance of 5 k2 to a ammeter of 1 A range?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter9: Measuring Instruments

Section: Chapter Questions

Problem 3PP: 3. A meter movement has a full-scale value of . A shunt is to be connected to the meter that permits...

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Photoconductive cells are light-sensitive resistors in which resistance is inversely proportionated to light intensity when illuminated. These devices consist of a thin single-crystal or polycrystalline film of composite semiconductor materials. Cadmium sulfide (CdS) is used to make the most commercially available photoconductive particles which are sensitive to light in the visible spectrum. Other less commonly used substances respond to infrared light, but not to the visible spectrum. Such substances are lead sulfide (PbS), lead selenide (PbSe), and lead telluride (PbTe), and so on.

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5. What shunt resistance is needed to convert a microammeter with a full scale
range of 10 µA and an internal resistance of 5 k2 to a ammeter of 1 A range?

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