Electrical Systems > Batteries and DC Circuits

Batteries and DC Circuits

Course Number: 722.1

The Batteries and DC Circuits textbook covers how electrochemical action is used. Covers batteries, electrolytic action, electroplating, Characteristics of storage batteries, application and maintenance of lead-acid, nickel-alkaline, and nickel-cadmium batteries, putting batteries into service, charging batteries, maintaining records, fundamentals of DC circuits, and using Ohm's Law to solve problems in DC series, parallel, and series-parallel circuits.

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Table of Contents

Chapter 1: Electrochemical Action

Topics: Battery characteristics; Electrolysis; Electroplating; Extracting and refining metals; Electrolytic corrosion; Choosing a battery

Learning Objectives:

  • State the difference between a primary cell and a secondary cell.
  • Discuss electrochemical action.
  • Explain how battery polarization works.
  • State the definition of an electrolyte.
  • List the factors to consider in selecting a battery.

Chapter 2: Battery Characteristics

Topics: Care and maintenance of dry cells; New kinds of primary cells; Secondary cells; Stationary batteries; Storage batteries

Learning Objectives:

  • List advantages of dry cells.
  • State the characteristics of dry cells.
  • Explain how to create a six-volt battery from 1.5 volt dry cells.
  • Name the basic kinds of storage cells in use today.
  • Explain how to calculate the rating required in a battery for a specific application.

Chapter 3: Kinds of Batteries

Topics: Lead-acid batteries; Lead-calcium batteries; Nickel-iron alkaline cells; Nickel-cadmium alkaline cell

Learning Objectives:

  • List advantages of dry cells.
  • State the characteristics of dry cells.
  • Explain how to create a six-volt battery from 1.5 volt dry cells.
  • Name the basic kinds of storage cells in use today.
  • Explain how to calculate the rating required in a battery for a specific application.

Chapter 4: Maintaining Lead-Acid Batteries

Topics: Placing a new battery in service; Care of dry- and wet-charged batteries; Battery testing; Industrial truck batteries; Battery problems

Learning Objectives:

  • List the steps in placing a new dry-charged battery in service.
  • Name the three basic methods of charging batteries.
  • Explain how to measure a cell's specific gravity.
  • List causes of low specific gravity in a cell.
  • Tell how to clean a wet, dirty battery cover.

Chapter 5: Charging Lead-Acid Batteries

Topics: Battery charging; Initial and normal charge; Equalizing, trickle, emergency, boost, and freshening charge; Test discharge; Cell failure

Learning Objectives:

  • Explain how to conduct an initial charge.
  • Discuss the different types of battery charges.
  • List the common causes of cell failure.
  • Explain how to mix electrolyte correctly.
  • Explain how to treat both skin and eyes that have been splashed with acid.

Chapter 6: Solving Problems in DC Circuits

Topics: Sources of DC electricity; Ohm's Law; Work; Torque; Power; Efficiency; Branch points and loops

Learning Objectives:

  • Define Ohm's Law and use it to solve a problem.
  • State the definition of a branch point.
  • Solve a problem using the power formula.
  • State the definition of Kirchhoff's rules.
  • Define work, power, torque, and efficiency.

Chapter 7: DC Series Circuits

Topics: Ohm's Law for series circuits; Current control; Voltage drop; Using equations; Using Kirchhoff's Rules

Learning Objectives:

  • Describe a series circuit.
  • Solve for E, I, and R in series circuits.
  • State the basic rule you must follow when making changes in an equation.

Chapter 8: Parallel Circuits

Topics: Recognizing parallel circuits; Resistance, voltage drop, and current in parallel circuits; Calculating resistance and power; Conductance

Learning Objectives:

  • State the definition of a parallel circuit.
  • Explain how to calculate the current in each branch of a parallel circuit.
  • Explain how to calculate resistance in a parallel circuit.
  • Calculate power in a parallel circuit.
  • Find the reciprocal of any value.

Chapter 9: Series-Parallel Circuits

Topics: DC motors and generators; Voltage dividers; Lighting circuits; Three- and four-way switch circuits

Learning Objectives:

  • State the definition of a series-parallel circuit.
  • Identify series, parallel, and series-parallel circuits.
  • Explain how to calculate resistances in a series-parallel circuit.
  • Demonstrate how to trace and simplify a circuit.

Chapter 10: DC Circuits in Use

Topics: AC and DC electricity; AC waveform; Peak-to-peak, average, and effective values; Energy storage; Faraday's Law; Basic circuit concepts

Learning Objectives:

  • Explain how the three types of dc motors differ.
  • Demonstrate how to increase and decrease the speed of a dc motor by adding resistors.
  • Identify a three-way switch.
  • Calculate current and resistance using voltage divider circuits.

Add Chapters to Your Custom Book

Select Chapter(s):

  •    Chapter 1: Electrochemical Action
  •    Chapter 2: Battery Characteristics
  •    Chapter 3: Kinds of Batteries
  •    Chapter 4: Maintaining Lead-Acid Batteries
  •    Chapter 5: Charging Lead-Acid Batteries
  •    Chapter 6: Solving Problems in DC Circuits
  •    Chapter 7: DC Series Circuits
  •    Chapter 8: Parallel Circuits
  •    Chapter 9: Series-Parallel Circuits
  •    Chapter 10: DC Circuits in Use

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