Electronic Principles The barrier potential accross each depletion layer is None of these 0.7 V 20 V 0.8 V None of these 0.7 V 20 V 0.8 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Two - a negative terminal and a positive terminal One - a negative terminal None of these Three - negative, positive and neutral terminals Four - two negative and two positive Two - a negative terminal and a positive terminal One - a negative terminal None of these Three - negative, positive and neutral terminals Four - two negative and two positive ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Electrons, protons, and ions Protons only None of these Electrons, protons, and neutrons Electrons, ions, and neutrons Electrons, protons, and ions Protons only None of these Electrons, protons, and neutrons Electrons, ions, and neutrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately reflects the nature of ac power? The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in one direction, but changes value periodically The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in one direction, but changes value periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Secondary voltage Impossible to say Neither None of these Primary voltage Secondary voltage Impossible to say Neither None of these Primary voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Like magnetic poles repel, while unlike poles attract None of these Like magnetic poles attract, while unlike poles repel Current flowing through a conductor generates a magnetic field Current is induced in a conductor that is moving through a magnetic field Like magnetic poles repel, while unlike poles attract None of these Like magnetic poles attract, while unlike poles repel Current flowing through a conductor generates a magnetic field Current is induced in a conductor that is moving through a magnetic field ANSWER DOWNLOAD EXAMIANS APP
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