Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently None of these Hysteresis is most apparent when the core material is saturated Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently None of these Hysteresis is most apparent when the core material is saturated Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Positive ions are atoms that have Gained a proton Gained an electron Lost an electron Lost a proton None of these Gained a proton Gained an electron Lost an electron Lost a proton None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? 690 ohm None of these 220 ohm 445 ohm 150 ohm 690 ohm None of these 220 ohm 445 ohm 150 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: passes higher-frequency signals and reduces lower-frequency signals reduces the level of all frequencies by a significant amount has no effect on ac signals passes lower-frequency signals and reduces higher-frequency signals None of these passes higher-frequency signals and reduces lower-frequency signals reduces the level of all frequencies by a significant amount has no effect on ac signals passes lower-frequency signals and reduces higher-frequency signals None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating below its resonant frequency, a parallel RLC circuit has the characteristics of a: purely resistive circuit parallel RC circuit parallel RL circuit None of these parallel RLC circuit operated above its resonant frequency purely resistive circuit parallel RC circuit parallel RL circuit None of these parallel RLC circuit operated above its resonant frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 0.5 None of these 4 180 0.25 0.5 None of these 4 180 0.25 ANSWER DOWNLOAD EXAMIANS APP
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