Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet None of these Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet 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 None of these Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the core material is saturated ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 36 V 60 V None of these 40 V 0 V 36 V 60 V None of these 40 V 0 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic semiconductor has No holes a few free electrons and holes many holes None of these many free electrons No holes a few free electrons and holes many holes None of these many free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has how many doped regions? 3 None of these 4 1 2 3 None of these 4 1 2 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 43922 2 43891 3 None of these 43922 2 43891 3 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 micro A is: one million amperes 1000 A one-millionth of an ampere 10000A None of these one million amperes 1000 A one-millionth of an ampere 10000A None of these ANSWER DOWNLOAD EXAMIANS APP