Electronic Principles Which one of the following phrasers best describes flux density? The opposition to a build-up of magnetic fields The force that maintains lines of force None of these The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force The opposition to a build-up of magnetic fields The force that maintains lines of force None of these The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Ohmmeter Voltmeter None of these Wattmeter Ammeter Ohmmeter Voltmeter None of these Wattmeter Ammeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A basic capacitor is composed of: two coils separated by a conductor two dielectrics separated by a conductor two coils separated by a dielectric two conductors separated by a dielectric None of these two coils separated by a conductor two dielectrics separated by a conductor two coils separated by a dielectric two conductors separated by a dielectric None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The Thevenin resistance is equal in value to the Internal resistance of a Morton circuit None of these Load resistance Half the load resistance Open-load resistance Internal resistance of a Morton circuit None of these Load resistance Half the load resistance Open-load resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns? 0.1 A None of these 1000 A 100 A 0.41666666666667 0.1 A None of these 1000 A 100 A 0.41666666666667 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? 68.4 mA 24.2 mA 34.4 mA None of these 28.4 mA 68.4 mA 24.2 mA 34.4 mA None of these 28.4 mA ANSWER DOWNLOAD EXAMIANS APP
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