Electronic Principles What is one important thing transistors do? None of these Amplify weak signals Rectify line voltage Emit light Regulate voltage None of these Amplify weak signals Rectify line voltage Emit light Regulate voltage 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? 12 V 24 V 30 V 18 V None of these 12 V 24 V 30 V 18 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: a temporary magnet a natural magnet a paramagnetic alloy None of these an artificial magnet a temporary magnet a natural magnet a paramagnetic alloy None of these an artificial magnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: a poor conductor of electrostatic fields a good insulator a good conductor None of these a good conductor of magnetic fields a poor conductor of electrostatic fields a good insulator a good conductor None of these a good conductor of magnetic fields ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the algebraic sum of this series of values:+2, -3, -6,+4? 2 -3 -6 None of these 2 -3 -6 None of these 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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