wwwwRg-(mg-m)Ra(2500-- 500) x 100 2-200 k2,Ra- (m4-ma)Ru -(5000-2500) x 100 2-2s0 ka.andMulti-range DC Voltmeter HomeworkDesign (0-250) V, (0-400 V) and (0-700)v multi range DC voltmeter.,the meter available is Rm-1KO, 100 µA.Example 3.4. A basic D'Arsonval movement with a full deflection of 50 µA and internalresistance of 500 2 is used as a voltmeter. Determine the value of the multiplier resistance neededto measure a voltage range of 0-10 V.Example 3.5. Calculate the value of multiplier resistance for the multiple range de voltmetercircuit shown in Fig 3.15.۳ مارسR, R R- 50 uAR= 1 k210 V5V50 VFig. 3.15.

in this question , we have to convert meter into multi range voltmeter...And find out the value of…

Multi-range DC Voltmeter Homework Design (0-250) V, (0- 400 V) and (0-700)V multi range DC voltm eter available is Rm=1KQ, 100 HA. ample 3.4. A basic D'Arsonval movement with a full deflection of 50 . mce of 500 2 is used as a voltmeter. Determine the value of the multiplier res sure a voltage range of 0-10 V. Example 3.5. Calculate the value of multiplier resistance for the multiple range mit shown in Fig 3.13.

Multi-range DC Voltmeter Homework Design (0-250) V, (0- 400 V) and (0-700)V multi range DC voltm eter available is Rm=1KQ, 100 HA. ample 3.4. A basic D'Arsonval movement with a full deflection of 50 . mce of 500 2 is used as a voltmeter. Determine the value of the multiplier res sure a voltage range of 0-10 V. Example 3.5. Calculate the value of multiplier resistance for the multiple range mit shown in Fig 3.13.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter30: Dc Motors

Section: Chapter Questions

Problem 6RQ: What is CEMF?

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Concept explainers

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.

Question

ww
ww
Rg-(mg-m)Ra(2500-- 500) x 100 2-200 k2,
Ra- (m4-ma)Ru -(5000-2500) x 100 2-2s0 ka.
and
Multi-range DC Voltmeter Homework
Design (0-250) V, (0-400 V) and (0-700)v multi range DC voltmeter.,
the meter available is Rm-1KO, 100 µA.
Example 3.4. A basic D'Arsonval movement with a full deflection of 50 µA and internal
resistance of 500 2 is used as a voltmeter. Determine the value of the multiplier resistance needed
to measure a voltage range of 0-10 V.
Example 3.5. Calculate the value of multiplier resistance for the multiple range de voltmeter
circuit shown in Fig 3.15.
۳ مارس
R, R R
- 50 uA
R= 1 k2
10 V
5V
50 V
Fig. 3.15.

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What is CEMF?