Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 43891 3 None of these 43922 2 43891 3 None of these 43922 2 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Electrons, protons, and ions Protons only Electrons, ions, and neutrons None of these Electrons, protons, and neutrons Electrons, protons, and ions Protons only Electrons, ions, and neutrons None of these Electrons, protons, and neutrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Inductive reactance provides the only opposition to current flow None of these Resistances provide the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree Inductive reactance provides the only opposition to current flow None of these Resistances provide the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 0.05 mA 13 mA 3.2 mA None of these 3.75 mA 0.05 mA 13 mA 3.2 mA None of these 3.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 4 180 None of these 0.25 0.5 4 180 None of these 0.25 0.5 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for current is the: watt volt ohm ampere None of these watt volt ohm ampere None of these ANSWER DOWNLOAD EXAMIANS APP
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