Electronic Principles At room temperature a conductor has low many holes? less than the free electrons Same number as free electrons Only those produced by thermal energy None of these many less than the free electrons Same number as free electrons Only those produced by thermal energy None of these many ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 24 V 4.73 0.4 V None of these 600 V 24 V 4.73 0.4 V None of these 600 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total capacitance of a series capacitor circuit is: less than the value of the smallest capacitor equal to the sun of the individual capacitive-reactance values equal to the sum of the individual capacitance values None of these equal to the source voltage divided by total current less than the value of the smallest capacitor equal to the sun of the individual capacitive-reactance values equal to the sum of the individual capacitance values None of these equal to the source voltage divided by total current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Electrons, protons, and ions None of these Electrons, protons, and neutrons Electrons, ions, and neutrons Protons only Electrons, protons, and ions None of these Electrons, protons, and neutrons Electrons, ions, and neutrons Protons only ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Waveforms are graphs that show: None of these amplitude on the vertical axis and frequency on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis None of these amplitude on the vertical axis and frequency on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 200 mA None of these 208 mA 300 mA 7.8 mA 200 mA None of these 208 mA 300 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
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