MODULE 1 INDEX A Artificial magnets, 1-14, 1-15 Atoms, matter, 1-4 to 1-8 energy levels,
1-5, 1-6 ionization, 1-8 shells and subshells, 1-6 valence, 1-7 B Batteries,
2-2 to 2-29 cell, 2-2container, 2-3 electrodes, 2-2 electrolyte, 2-3 primary cell, 2-3 secondary cell, 2-3
electrochemical action, 2-4 local action, 2-7 polarization of the cell, 2-7 primary cell chemistry, 2-4
secondary cell chemistry, 2-5, 2-6 summary, 2-22 to 2-29 types of cells, 2-8 to 2-16 batteries, 2-13
battery charging, 2-20, 2-21 battery construction, 2-16 to 2-18 battery maintenance, 2-18, 2-19
capacity and rating of batteries, 2-20, 2-22 combining cells, 2-13 to 2-15 primary dry, 2-8 to 2-11
secondary wet, 2-11 to 2-12 Battery charging, 2-20, 2-22 charging rate, 2-22 charging time, 2-22
equalizing, 2-21 fast, 2-22 floating, 2-21 gassing, 2-22 initial, 2-21 normal, 2-21 C Cell, batteries, 2-2 to 2-4 Cells, types of, 2-8 to 2-13 batteries, 2-13 battery charging, 2-20, 2-21
battery construction, 2-16 to 2-18 battery maintenance, 2-18 to 2-20 hydrometer, 2-19 other maintenance,
2-19 safety precautions with batteries, 2-19 capacity and rating of batteries, 2-20, 2-21 combining cells, 2-13
to 2-15 primary dry, 2-8, 2-9 secondary wet, 2-11, 2-12
Charged bodies, electrostatics, 1-11 Charges, electrical, 1-26 to 1-31 Circuit terms and characteristics,
3-41 to 3-48 open circuit, 3-43, 3-44 power transfer and efficiency, 3-48 reference point, 3-41, 3-42 short
circuit, 3-44, 3-45 source resistance, 3-46 to 3-48 Color code, simplifying, 1-45, 1-46
Combination-circuit problems, solving, 3-76 to 3-84 Combining cells, 2-13 to 2-15 series-connected cells,
2-13, 2-14 series-parallel-connected cells, 2-15 to 2-16 Composition of resistors, 1-41, 1-42 Conductors,
semiconductors, and insulators, 1-8
Container, cell, batteries, 2-3 Coulomb's Law of Charges, 1-12 Current, electric, 1-34, 1-35 D Direct current, 3-1 to 3-126 basic electric circuit, 3-2 schematic representation,
3-2, 3-3 circuit terms and characteristics, 3-40 open circuit, 3-43, 3-44 Direct current - Continued power
transfer and efficiency, 3-48, 3-49 reference point, 3-48, 3-49 short circuit, 3-48 to 3-49 source resistance,
3-48 to 3-50
electrical safety, 3-108 to 3-111 danger signals, 3-108, 3-109 electrical fires, 3-109 equivalent circuit
techniques, 3-107, 3-108 first aid for electric shock, 3-108, 3-109 Kirchhoff's voltage law, 3-35 to 3-43
application, 3-35, 3-37 polarity of voltage, 3-34 Ohm's law, 3-8 to 3-9 application, 3-5 to 3-9 graphical
analysis of the basic circuit, 3-9 to 3-12 parallel d.c. circuits, 3-49 to 3-78 parallel circuit
characteristics, 3-49 to 3-70
solving parallel circuit problems, 3-68 to 3-76 power, 3-11 to 3-17 power conversion and efficiency, 3-17 to
3-19 power rating, 3-16, 3-17 series d.c. circuits, 3-19 to 3-33 analysis, 3-28 to 3-33 characteristics,
3-19 summary, 3-28 series-parallel d.c. circuits, 3-76 to 3-84 effects of open and short circuits, 3-89 to 3-91
redrawing circuits for clarity, 3-86 to 3-90 solving combination-circuit problems, 3-76 to 3-84 summary,
3-110 to 3-121 voltage dividers, 3-91 to 3-107 multiple-load voltage dividers, 3-95 to 3-98 positive and
negative voltage requirements, 3-100 to 3-103 power, 3-98, 3-99 practical application, 3-103 to 3-107 Directed drift electric current, 1-35 to 1-37 Domain Theory, magnetism, 1-18, 1-19 E Electric circuit, basic, 3-2 schematic representation, 3-2 Electrical energy, 1-25, 1-26 conductance, 1-40 electric current, 1-34 to 1-37 directed drift, 1-35 to 1-37 magnitude of current flow, 1-36 measurement of
current, 1-37 random drift, 1-34 electrical charges, 1-26, 1-27 electrical resistance, 1-37 factors
that affect resistance, 1-37, 1-38 electrical resistors, 1-40 to 1-46 composition of resistors, 1-41, 1-42 fixed and variable
resistors, 1-42 simplifying the color code, 1-45, 1-47 standard color code system, 1-43 to 1-47 wattage rating, 1-42 how voltage is produced, 1-27 to 1-34 by chemical action, 1-32, 1-33 by
friction, 1-28 by heat, 1-29 by light, 1-30 to 1-32 by magnetism, 1-33, 1-34 by pressure, 1-28 Electrical safety, 3-108 to 3-111 danger signals, 3-107, 3-108 electrical fires, 3-108 Electrochemical
action, 2-4 local action, 2-7 polarization of the cell, 2-7 primary cell chemistry, 2-8 secondary cell
chemistry, 2-3, 2-4 Electrodes, cell, batteries, 2-2 Electrolyte, cell, batteries, 2-3 Electrostatics, 1-9 static electricity 1-10, 1-11 charged bodies, 1-11 Coulomb's Law of Charges,
1-12 electric fields, 1-12, 1-13 Electrostatics - Continued nature of charges, 1-11 F Ferromagnetic materials, 1-14 First aid for electric shock, 3-109, 3-110 Fixed and variable
resistors, 1-42 Formulas, d.c. circuits, AV-1 G Glossary, AI-I to AI-9 H Hydrometer, battery, 2-19
K Kirchhoff's voltage law, 3-34 to 3-43 application, 3-35, 3-36 series
aiding and opposing sources, 3-39 to 3-40 polarity of voltage, 3-34 L Law of exponents, AII-1 to AII-3 Lead acid cell, 2-11 Lines of force, magnetic fields, 1-20 to 1-22 M Magnetism, 1-13 care of magnets, 1-24 magnetic effects, 1-22 magnetic
induction, 1-22, 1-23 magnetic shielding, 1-23 to 1-25 magnetic fields, 1-19, 1-20 lines of force, 1-20 to
1-22 magnetic materials, 1-14 artificial magnets, 1-14, 1-15 ferromagnetic materials, 1-14 natural magnets,
1-14 magnetic poles, 1-15 to 1-17 earth's magnetic poles, 1-16, 1-17 law of, 1-16, 1-17 Magnetism - Continued magnetic shapes, 1-24 theories of magnetism, 1-17 to 1-19 Domain Theory, 1-18,
1-19 Weber's Theory, 1-17, 1-18 Magnitude of current flow, 1-36 Matter, energy, and
electricity, 1-2 to 1-71 conductors, semiconductors, and insulators, 1-8 electrical energy, 1-25 to
1-38 conductance, 1-40 electric current, 1-34 to 1-37 electrical charges, 1-26 to 1-28 electrical
resistance, 1-37 to 1-40 electrical resistors, 1-40 to 1-46 how voltage is produced, 1-27 to 1-34
electrostatics, 1-9 static electricity, 1-10, 1-11 magnetism, 1-13 care of magnets, 1-24 magnetic
effects, 1-22 magnetic fields, 1-19, 1-20 magnetic materials, 1-14 magnetic poles, 1-15 to 1-17 magnetic shapes,
1-24 theories of magnetism, 1-17 to 1-19 matter, 1-3 to 1-8 atoms, 1-4 to 1-8 molecules, 1-3, 1-4 summary, 1-47 to 1-62 Measurement of current, 1-37 Mercuric-oxide zinc cell, 2-10, 2-11 Molecules, matter, 1-3, 1-4 Multiple-load voltage dividers, 3-95 to 3-98
N Natural magnets, 1-14 Nickel-cadmium cell, 2-12, 2-13
O Ohm's law, 3-4 to 3-9 application, 3-5 to 3-9 graphical analysis of the basic circuit,
3-9, 3-12 Open circuit, 3-43, 3-44 P Parallel d.c. circuits, 3-49 to 3-78
characteristics, 3-49 to 3-70 current, 3-51 to 3-60 equivalent circuits, 3-66, 3-70 power, 3-65 to 3-67 resistance, 3-58 to 3-64 rules, 3-68 voltage, 3-49 to 3-51solving parallel circuit problems, 3-68 to 3-76 Polarization of the
cell, 2-7, 2-8 Positive and negative voltage requirements, 3-100 to 3-103Power, direct current, 3-11 to 3-19 power conversion and efficiency, 3-17 to3-19 power rating, 3-16, 3-17 Power transfer and
efficiency, circuit, 3-48, 3-49 Power, voltage dividers, 3-98, 3-99 Primary dry cell, 2-8construction of a dry cell, 2-8, 2-9 mercuric-oxide zinc cell, 2-10, 2-11 other
types, 2-11 Primary cell, batteries, 2-3 Primary cell, chemistry, 2-4, 2-5 R Random drift electric current, 1-34 Reference Point, Circuit, 3-41, 3-42 Redrawing circuits for clarity, 3-84 to 3-88Resistance, electrical, 1-37 S
Secondary wet cells, 2-11, 2-12 lead-acid cell, 2-11 nickel-cadmium cell, 2-12, 2-13 silver-cadmium
cell, 2-12 silver-zinc cells, 2-12 Secondary cell, batteries, 2-3 Secondary cell chemistry, 2-5, 2-6 Series-connected cells, 2-13, 2-14 Series d.c. circuits, 3-19 to 3-33 Series d.c. circuits - Continued analysis, 3-28 to 3-33 characteristics, 3-19 current, 3-22, 3-23 power, 3-26 to 3-28 resistance, 3-20 to 3-22 voltage, 3-23 to 3-26summary, 3-28 rules for series, 3-28 Series-parallel-connected cells, 2-14 Series-parallel d.c. circuits, 3-76 to 3-91 effects of open and short circuits, 3-89 to3-91 redrawing circuits for clarity, 3-84 to 3-88 redrawing a complex circuit, 3-86 to 3-88 solving
combination-circuit problems, 3-76 to 3-84 practice circuit problem, 3-81 to 3-84 Short circuit, 3-44, 3-45Silver-cadmium cell, 2-12 Silver-zinc cells, 2-12 Source
resistance, 3-46 to 3-48 Square and square roots, AIII-l, AIII-2 Standard color code system, 1-43 to 1-45V Voltage dividers, 3-91
to 3-107 multiple-load voltage dividers, 3-95 to 3-98 positive and negative voltage
requirements, 3-100 to 3-103 power, 3-98, 3-99 practical application, 3-103 to 3-107 Voltage
is produced, 1-27 to 1-34 by chemical action, 1-32, 1-33 by friction, 1-28, 1-29 by heat, 1-29 by
light, 1-30 to 1-32 by magnetism, 1-33, 1-34 by pressure, 1-28 W Wattage rating, 1-42 Weber's Theory, magnetism, 1-17, 1-18 INDEX-1
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