A PMMC instrument with FSD of 250 µA and a coil resistance of 1.6 k2 is to be converted into a voltmeter. Determine the required multiplier resistance if the voltmeter is to measure 50 V at full scale. Also, calculate the applied voltage when the instrument indicates 0.3 of FSD.?

A PMMC instrument with FSD of 250 µA and a coil resistance of 1.6 k2 is to be converted into a voltmeter. Determine the required multiplier resistance if the voltmeter is to measure 50 V at full scale. Also, calculate the applied voltage when the instrument indicates 0.3 of FSD.?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 3RQ: Diodes and rectifiers allow current to _________. flow in one direction only flow in both...

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

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Q.2
A PMMC instrument with FSD of 250 µA and a coil resistance of 1.6 kN is to be converted
into a voltmeter. Determine the required multiplier resistance if the voltmeter is to measure 50
V at full scale. Also, calculate the applied voltage when the instrument indicates 0.3 of FSD.?
[17 5 Morkel

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