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 300 mA 208 mA 7.8 mA 200 mA None of these 300 mA 208 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles 1 Microfarad is the same as: 1000 millifarads None of these 1 million farads 1 millionth of a picofarad 1 million picofarads 1000 millifarads None of these 1 million farads 1 millionth of a picofarad 1 million picofarads ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true? There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency None of these Power dissipation of a pure capacitor decreases with operating frequency All of these Power dissipation of a pure capacitor increases with operating frequency There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency None of these Power dissipation of a pure capacitor decreases with operating frequency All of these Power dissipation of a pure capacitor increases with operating frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Two diodes are in series. The first diode has a voltage of 0.75 V and the second has a voltage of 0.8 V. If the current through the first diode is 500 mA, what is the current through the second diode 10 mA 12 mA 11 mA 14 mA None of these 10 mA 12 mA 11 mA 14 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz? 444 Ohm 100 Ohm 628 Ohm Less than 1 Ohm None of these 444 Ohm 100 Ohm 628 Ohm Less than 1 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 38.74 V 30.4 V 37.4 V None of these 35.4 V 38.74 V 30.4 V 37.4 V None of these 35.4 V ANSWER DOWNLOAD EXAMIANS APP
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