1. You have six identical battery cells, each is rated 3V and has internal resistance of 0.5 oh. How would you arrange the five cells to get: a. Maximum possible voltage b. Minimum possible voltage CE = 6V d. e=9V For each case, determine also the total internal resistance. Solution

1. You have six identical battery cells, each is rated 3V and has internal resistance of 0.5 oh. How would you arrange the five cells to get: a. Maximum possible voltage b. Minimum possible voltage CE = 6V d. e=9V For each case, determine also the total internal resistance. Solution

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

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter2: Basic Electricity

Section: Chapter Questions

Problem 21RQ: Describe briefly the method a dry cell battery uses to produce voltage.

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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

1. You have six identical battery cells, each is rated 3V and has internal resistance of 0.5 ohn.
How would you arrange the five cells to get:
a. Maximum possible voltage
b. Minimum possible voltage
C E = 6V
d. e = 9 V
For each case, determine also the total internal resistance.
Solution
Case
Equivalent Circuit
a
b

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