Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 180 0.5 0.25 4 None of these 180 0.5 0.25 4 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Ohmmeter Ammeter Wattmeter None of these Voltmeter Ohmmeter Ammeter Wattmeter None of these Voltmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 40 V 0 V None of these 36 V 60 V 40 V 0 V None of these 36 V 60 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field? Out of this page Into this page Counterclockwise None of these Clockwise Out of this page Into this page Counterclockwise None of these Clockwise ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately applies to the frequency of a waveform? Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz The actual frequency of a sine waveform is 1.41 times the working frequency None of these The higher the amplitude of a waveform, the higher its frequency The longer the period of a waveform, the lower its frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz The actual frequency of a sine waveform is 1.41 times the working frequency None of these The higher the amplitude of a waveform, the higher its frequency The longer the period of a waveform, the lower its frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which is the most widely used semiconductor? All of these Germanium None of these Silicon Copper All of these Germanium None of these Silicon Copper ANSWER DOWNLOAD EXAMIANS APP
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