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? None of these 200 mA 208 mA 300 mA 7.8 mA None of these 200 mA 208 mA 300 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: a paramagnetic alloy an artificial magnet a temporary magnet None of these a natural magnet a paramagnetic alloy an artificial magnet a temporary magnet None of these a natural magnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA? 10.17 V 0.17 V None of these 20 V 18.8 V 10.17 V 0.17 V None of these 20 V 18.8 V ANSWER DOWNLOAD EXAMIANS APP
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? 2 None of these 3 43891 43922 2 None of these 3 43891 43922 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Norton's theorem replaces a complicated circuit facing a load by an Ideal voltage source and series resistor Ideal voltage source and parallel resistor Ideal current source and parallel resistor Ideal current source and series resistor None of these Ideal voltage source and series resistor Ideal voltage source and parallel resistor Ideal current source and parallel resistor Ideal current source and series resistor None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total capacitance of a series capacitor circuit is: equal to the sun of the individual capacitive-reactance values equal to the sum of the individual capacitance values equal to the source voltage divided by total current None of these 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 equal to the source voltage divided by total current None of these less than the value of the smallest capacitor ANSWER DOWNLOAD EXAMIANS APP
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