Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 0 V 40 V None of these 60 V 36 V 0 V 40 V None of these 60 V 36 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements applies to common, non-rechargeable flashlight batteries? Common flashlight batteries are primary wet-cell batteries Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are secondary wet-cell batteries Common flashlight batteries are primary dry-cell batteries None of these Common flashlight batteries are primary wet-cell batteries Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are secondary wet-cell batteries Common flashlight batteries are primary dry-cell batteries None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 18 V 24 V None of these 12 V 30 V 18 V 24 V None of these 12 V 30 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The peak value of a sine waveform is: the amplitude at 1.41 times the maximum value the amplitude at 70.7% of the maximum value the amplitude at 90% of the maximum value the maximum positive or negative value None of these the amplitude at 1.41 times the maximum value the amplitude at 70.7% of the maximum value the amplitude at 90% of the maximum value the maximum positive or negative value None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage reverses polarity periodically The voltage remains at one polarity but changes value periodically None of these The voltage causes current to flow in two directions at the same time The voltage remains at one polarity and at a steady level The voltage reverses polarity periodically The voltage remains at one polarity but changes value periodically None of these The voltage causes current to flow in two directions at the same time The voltage remains at one polarity and at a steady level ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 300 µA None of these 0.25 µA 250 µA 350 µA 300 µA None of these 0.25 µA 250 µA 350 µA ANSWER DOWNLOAD EXAMIANS APP
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