Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 13 mA 3.75 mA None of these 0.05 mA 3.2 mA 13 mA 3.75 mA None of these 0.05 mA 3.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles As the temperature increases, the current gain None of these increases contant decreases can be any of the above None of these increases contant decreases can be any of the above ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used for creating static electricity? Solar energy Chemical energy Light energy None of these Mechanical energy Solar energy Chemical energy Light energy None of these Mechanical energy 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? 180 0.5 None of these 0.25 4 180 0.5 None of these 0.25 4 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is most apparent when the core material is saturated None of these Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet 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 None of these Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? An electron that has been freed from its parent atom An electron that has no electrical charge None of these An electron that has twice the amount of charge of a normal electron An electron that costs nothing An electron that has been freed from its parent atom An electron that has no electrical charge None of these An electron that has twice the amount of charge of a normal electron An electron that costs nothing ANSWER DOWNLOAD EXAMIANS APP
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