## Electrical measurements |

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### Contents

Preface | 1 |

Review of Elementary Electrostatics | 15 |

Ammeter and Voltmeter Methods | 26 |

Copyright | |

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### Common terms and phrases

alternating current ammeter amount ampere ampere-turns amplifier ance angle arrangement atoms balance point ballistic galvanometer battery bridge wire calibration capacitance cathode charge computed condenser conductor connected constant corresponding current flowing deflection denotes determined diagram difference of potential diode direction effect electric electrodynamometer electron current energy equal equation equivalent circuit external factor fall of potential figure of merit flux density force frequency galvanometer circuit gives grid high resistance hysteresis impedance internal resistance iron joined in series loop magnetic circuit magnetic field magnetic flux magnitude measured meter method mutual inductance negative obtained Ohm's law ohms parallel positive potential difference potential divider potentiometer power expended produce quadrants quantity ratio reading scale secondary coil sensitivity shown in Fig shunt standard cell switch temperature terminals theorem Thevenin's theorem torque triode tube vector voltage voltmeter volts wattmeter Wheatstone bridge zero