Electronic Principles What are the main parts of an atom? Electrons, protons, and ions Electrons, protons, and neutrons Protons only Electrons, ions, and neutrons None of these Electrons, protons, and ions Electrons, protons, and neutrons Protons only Electrons, ions, and neutrons None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage reverses polarity periodically None of these The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage causes current to flow in two directions at the same time The voltage reverses polarity periodically None of these The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage causes current to flow in two directions at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: a good insulator a good conductor of magnetic fields a poor conductor of electrostatic fields None of these a good conductor a good insulator a good conductor of magnetic fields a poor conductor of electrostatic fields None of these a good conductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Same as the primary current No more than 10% less than the primary current One-half the primary current Twice the primary current None of these Same as the primary current No more than 10% less than the primary current One-half the primary current Twice the primary current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? 28.4 mA 68.4 mA 24.2 mA 34.4 mA None of these 28.4 mA 68.4 mA 24.2 mA 34.4 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: the amount of opposition to the current flow how well the material concentrates electrostatic lines of force the amount of voltage it can withstand before breaking down None of these how well the material concentrates magnetic lines of force the amount of opposition to the current flow how well the material concentrates electrostatic lines of force the amount of voltage it can withstand before breaking down None of these how well the material concentrates magnetic lines of force ANSWER DOWNLOAD EXAMIANS APP
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