## Practical Problems in Mathematics for Electronic TechniciansSuccess in the electronics field requires a substantial background in mathematics. This updated book is written to provide beginning students with these needed skills. Practical, easy-to-understand problems help prepare students for the types of problems that professional electronic technicians face everyday. As part of the successful Practical Problems in Mathematics series, this fourth edition features expanded coverage of scientific notation, increased problems to be solved using a calculator, additional information on RLC circuits, and a new unit on simultaneous equations that includes coverage of Kirchoff’s Law. |

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### Contents

Multiplication of Whole Numbers | 17 |

Subtraction of Common Fractions | 36 |

Combined Operations with Common Fractions | 49 |

Subtraction of Decimal Fractions | 65 |

Combined Operations with Decimal Fractions | 79 |

Equivalent Electronic Units | 92 |

FORMULAS OHMS LAW AND POWER LAW | 105 |

Formulas | 112 |

SECTIONS PERCENTAGES AVERAGES AND TOLERANCES | 155 |

Tolerances and Color Code | 159 |

SECTIONS AC CIRCUITS | 167 |

Trigonometric Functions | 171 |

Unit37 Plane Vectors | 179 |

Inductive Circuits and RL Circuits | 190 |

Capacitive Circuits and RC Circuits | 194 |

RLC Circuits | 199 |

Ohms Law | 119 |

Power Law | 124 |

Combination Ohms Law and Power Law Problems | 127 |

SECTIONS RATIO AND PROPORTION | 132 |

Proportion | 135 |

SECTION? MEASUREMENT AND GRAPHS | 140 |

Surface and Volume Measure | 145 |

Graphs | 149 |

Simultaneous Equations | 209 |

APPENDIX | 219 |

UNITS AND TABLES OF ELECTRONIC MEASUREMENT | 224 |

ELECTRONIC SYMBOLS AND FORMULAS | 229 |

MATHEMATICAL REFERENCE TABLES | 232 |

GLOSSARY | 235 |

ANSWERS TO ODDNUMBERED PRACTICAL PROBLEMS | 238 |

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### Common terms and phrases

a.
b. Find altemating current amperes amperes of current amplifier angle antenna applied voltage band BASIC PRINCIPLES calculator capacitive reactance capacitor circular mil column COMMON FRACTIONS current flow current in amperes DECIMAL FRACTIONS decimal point denominate numbers digits diode divided electronic mixer electronics equal equation Example Express the answer feet Find the current Find the number Find the total Find the value formula frequency graph hertz hypotenuse impedance indicates inductive reactance inductor input integrated circuits kilohertz kilohms kilometers Kirchhoff's load megahertz meter m2 microamperes microhenries miles milliamperes millivolts milliwatts multiply Note Ohm's law output voltage peak-to-peak voltage power in watts PRACTICAL PROBLEMS printed circuit boards ratio RC circuit resistance in ohms resistor right triangle rms voltage scientific notation side signal solve source voltage square subtracted symbols technician tolerance total resistance transistor units of measure vector voltage drop voltage in volts volts WHOLE NUMBERS wire