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 208 mA 300 mA 7.8 mA None of these 200 mA 208 mA 300 mA 7.8 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating below its resonant frequency, a series RLC circuit has the characteristics of a: purely resistive circuit series RLC circuit operated above its resonant frequency None of these series RL circuit series RC circuit purely resistive circuit series RLC circuit operated above its resonant frequency None of these series RL circuit series RC circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff? 10 Ohm 50 Ohm None of these 100 Ohm or more 60 Ohm 10 Ohm 50 Ohm None of these 100 Ohm or more 60 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductive reactance of a parallel inductor circuit is: equal to the sum of the individual inductive-reactance values equal to the sum of the individual inductance values equal to the source voltage divided by total current None of these less than the inductance value of the smallest inductor equal to the sum of the individual inductive-reactance values equal to the sum of the individual inductance values equal to the source voltage divided by total current None of these less than the inductance value of the smallest inductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: the time required to complete one full cycle None of these the number of cycles completed in one second equal to 0.707 times the peak amplitude the time required for the voltage to rise from 10% to 90% of the peak amplitude the time required to complete one full cycle None of these the number of cycles completed in one second equal to 0.707 times the peak amplitude the time required for the voltage to rise from 10% to 90% of the peak amplitude ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RC circuit? The total current. is greater than the sum of the currents for the resistance and capacitance The total current is less than the sum of the currents for the resistance and capacitance None of these The total current is equal to the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit The total current. is greater than the sum of the currents for the resistance and capacitance The total current is less than the sum of the currents for the resistance and capacitance None of these The total current is equal to the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit ANSWER DOWNLOAD EXAMIANS APP
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