Electronic Principles When the collector current increases, what does the current gain do? None of these stays the same increases any of the above decreases None of these stays the same increases any of the above decreases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 0.05 mA 13 mA None of these 3.75 mA 3.2 mA 0.05 mA 13 mA None of these 3.75 mA 3.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Free electrons None of these Valence electrons Thermal energy Doping Free electrons None of these Valence electrons Thermal energy Doping ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A paramagnetic material All of these None of these A diamagnetic material A feiTomagnetic material A paramagnetic material All of these None of these A diamagnetic material A feiTomagnetic material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The south pole of a magnet is the one: that would be attracted to the earth's south magnetic pole that would be repelled by the north pole of another magnet that would be attracted to the earths north magnetic pole None of these that has its molecules arranged in a random pattern that would be attracted to the earth's south magnetic pole that would be repelled by the north pole of another magnet that would be attracted to the earths north magnetic pole None of these that has its molecules arranged in a random pattern ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately applies to the frequency of a waveform? None of these Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz The higher the amplitude of a waveform, the higher its frequency The longer the period of a waveform, the lower its frequency The actual frequency of a sine waveform is 1.41 times the working frequency None of these Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz The higher the amplitude of a waveform, the higher its frequency The longer the period of a waveform, the lower its frequency The actual frequency of a sine waveform is 1.41 times the working frequency ANSWER DOWNLOAD EXAMIANS APP
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