Electronic Principles Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage? 180 V None of these 100 V 120 V 170 V 180 V None of these 100 V 120 V 170 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Twice the primary current Same as the primary current One-half the primary current None of these No more than 10% less than the primary current Twice the primary current Same as the primary current One-half the primary current None of these No more than 10% less than the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? None of these 85 9 81 6 None of these 85 9 81 6 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much power is being dissipated by a 1000 W resistance that has 25 V applied to it? 0.24 W None of these 0.625 W 80 W 325 kW 0.24 W None of these 0.625 W 80 W 325 kW ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: None of these their waveforms are both ac or both dc they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time All of these None of these their waveforms are both ac or both dc they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? All of these A paramagnetic material None of these A diamagnetic material A feiTomagnetic material All of these A paramagnetic material None of these A diamagnetic material A feiTomagnetic material ANSWER DOWNLOAD EXAMIANS APP
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