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? 300 mA None of these 200 mA 208 mA 7.8 mA 300 mA None of these 200 mA 208 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The Thevenin resistance is equal in value to the Open-load resistance Half the load resistance None of these Load resistance Internal resistance of a Morton circuit Open-load resistance Half the load resistance None of these Load resistance Internal resistance of a Morton circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage? None of these 3 V 7.5 V 16 V 8 V None of these 3 V 7.5 V 16 V 8 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: always increases as the applied frequency increases None of these is minimum at the resonant frequency is maximum at the resonant frequency always decreases as the applied frequency increases always increases as the applied frequency increases None of these is minimum at the resonant frequency is maximum at the resonant frequency always decreases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A farad is defined as the amount of capacitance necessary for: storing 1 V for 1 second None of these causing an ac phase shift greater than 90 degree changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing dissipating 1 W of power storing 1 V for 1 second None of these causing an ac phase shift greater than 90 degree changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing dissipating 1 W of power ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source? 2.02 A 0.995 mA 0.151 mA 157 raA None of these 2.02 A 0.995 mA 0.151 mA 157 raA None of these ANSWER DOWNLOAD EXAMIANS APP
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