Electronic Principles Most AC power is obtained from: generators batteries lightning oscillators None of these generators batteries lightning oscillators None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? None of these Valence electrons Thermal energy Doping Free electrons None of these Valence electrons Thermal energy Doping Free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet None of these Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when the core material is saturated Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet None of these Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when the core material is saturated ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The north pole of a magnet is the one: that has its molecules arranged in a random pattern that would be attracted to the earth's south magnetic pole that would be attracted to the earth's north magnetic pole None of these that would be repelled by the south pole of another magnet that has its molecules arranged in a random pattern that would be attracted to the earth's south magnetic pole that would be attracted to the earth's north magnetic pole None of these that would be repelled by the south pole of another magnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz? None of these Less than 1 Ohm 444 Ohm 628 Ohm 100 Ohm None of these Less than 1 Ohm 444 Ohm 628 Ohm 100 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation? 10 mW 20 mW 300 mW 200 mW None of these 10 mW 20 mW 300 mW 200 mW None of these ANSWER DOWNLOAD EXAMIANS APP
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