Electronic Principles What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz? None of these 628 Ohm 444 Ohm 100 Ohm Less than 1 Ohm None of these 628 Ohm 444 Ohm 100 Ohm Less than 1 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the: None of these rotor battery armature commutator None of these rotor battery armature commutator ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit? Number of lines of force Reluctance Magnetomotive force None of these Flux density Number of lines of force Reluctance Magnetomotive force None of these Flux density ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The nucleus of the copper atom contains how many protons? 4 1 18 29 None of these 4 1 18 29 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely capacitive circuit? None of these Resistances provide the only opposition to current flow Capacitive reactance provides the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow The ac voltage leads the current by 90 degree None of these Resistances provide the only opposition to current flow Capacitive reactance provides the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow The ac voltage leads the current by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The rate of change of the number of lines of magnetic force The force that maintains lines of force None of these The opposition to a build-up of magnetic fields The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force The force that maintains lines of force None of these The opposition to a build-up of magnetic fields The concentration of lines of magnetic force ANSWER DOWNLOAD EXAMIANS APP
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