Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 81 None of these 6 9 85 81 None of these 6 9 85 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rms value of a sine waveform is: equal to 0.707 times the peak amplitude the number of cycles completed in one second equal to 1.41 times the peak amplitude the time required to complete one full cycle None of these equal to 0.707 times the peak amplitude the number of cycles completed in one second equal to 1.41 times the peak amplitude the time required to complete one full cycle None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A real voltage source has Zero internal resistance None of these A small internal resistance A large internal resistance Infinite internal resistance Zero internal resistance None of these A small internal resistance A large internal resistance Infinite internal resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately applies to the frequency of a waveform? The actual frequency of a sine waveform is 1.41 times the working frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz None of these The longer the period of a waveform, the lower its frequency The higher the amplitude of a waveform, the higher its frequency The actual frequency of a sine waveform is 1.41 times the working frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz None of these The longer the period of a waveform, the lower its frequency The higher the amplitude of a waveform, the higher its frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The graph of current gain versus collector current indicates that the current gain is contant None of these varies enormously varies slightly equals the collector current divided by the base current is contant None of these varies enormously varies slightly equals the collector current divided by the base current 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 250 µA 0.25 µA 350 µA None of these 300 µA 250 µA 0.25 µA 350 µA None of these ANSWER DOWNLOAD EXAMIANS APP
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