Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? None of these Voltmeter Ammeter Wattmeter Ohmmeter None of these Voltmeter Ammeter Wattmeter Ohmmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of electron current flow is: from neutral to positive from negative to positive None of these from positive to negative from right to left from neutral to positive from negative to positive None of these from positive to negative from right to left ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Voltage is None of these The flow of charged particles through a material Trie force that causes electrons to flow The smallest electrically charged particle The number of free electrons in an atom None of these The flow of charged particles through a material Trie force that causes electrons to flow The smallest electrically charged particle The number of free electrons in an atom 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 A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 707 V 700 V None of these 651 V 208 V 707 V 700 V None of these 651 V 208 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What causes the depletion layer? Ions Doping Recombination None of these Barrier potential Ions Doping Recombination None of these Barrier potential ANSWER DOWNLOAD EXAMIANS APP
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