Electronic Principles Most AC power is obtained from: oscillators lightning generators None of these batteries oscillators lightning generators None of these batteries ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The amount of magnetic flux that is not confined to the core material of an electromagnet None of these The force of attraction between the poles of a permanent and temporary magnetic field The circular magnetic field that surrounds a conductor carrying a current Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The amount of magnetic flux that is not confined to the core material of an electromagnet None of these The force of attraction between the poles of a permanent and temporary magnetic field The circular magnetic field that surrounds a conductor carrying a current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is most likely used for measuring the rate of electron flow? Ohmmeter Wattmeter Ammeter Voltmeter None of these Ohmmeter Wattmeter Ammeter Voltmeter None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 0.05 mA 3.2 mA 3.75 mA 13 mA None of these 0.05 mA 3.2 mA 3.75 mA 13 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? None of these Magnetomotive force Reluctance Flux density Number of lines of force None of these Magnetomotive force Reluctance Flux density Number of lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A feiTomagnetic material A diamagnetic material A paramagnetic material None of these All of these A feiTomagnetic material A diamagnetic material A paramagnetic material None of these All of these ANSWER DOWNLOAD EXAMIANS APP
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