Electronic Principles What causes the depletion layer? Recombination Barrier potential Ions Doping None of these Recombination Barrier potential Ions Doping None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: cuts the capacitive reactance in half multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance None of these has no effect on the capacitive reactance cuts the capacitive reactance in half multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance None of these has no effect on the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring opposition to current flow in a circuit? Ohmmeter Wattmeter Voltmeter None of these Ammeter Ohmmeter Wattmeter Voltmeter None of these Ammeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Protons only Electrons, protons, and neutrons Electrons, ions, and neutrons Electrons, protons, and ions None of these Protons only Electrons, protons, and neutrons Electrons, ions, and neutrons Electrons, protons, and ions None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: changing the polarity of the current in the coil changes the polarity of the magnetic field around the core an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil None of these frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil None of these frequent changes in the direction of current through the coil causes heating effects in the core material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately applies to the frequency of a waveform? The longer the period of a waveform, the lower its frequency None of these The higher the amplitude of a waveform, the higher 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 The longer the period of a waveform, the lower its frequency None of these The higher the amplitude of a waveform, the higher 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 ANSWER DOWNLOAD EXAMIANS APP
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