Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 600 V 0.4 V 4.73 None of these 24 V 600 V 0.4 V 4.73 None of these 24 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely capacitive circuit: has no effect on the total circuit current cuts the total current by one-half thrice the amount of total current None of these doubles the amount of total current has no effect on the total circuit current cuts the total current by one-half thrice the amount of total current None of these doubles the amount of total current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of a generator? Current flowing through a conductor generates a magnetic field None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel Like magnetic poles repel; unlike poles attract Current flowing through a conductor generates a magnetic field None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel Like magnetic poles repel; unlike poles attract ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? 24.2 mA 34.4 mA None of these 68.4 mA 28.4 mA 24.2 mA 34.4 mA None of these 68.4 mA 28.4 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current? 175 mA 1750 mA 1.75 mA 17.5 mA None of these 175 mA 1750 mA 1.75 mA 17.5 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately describes the nature of inductive reactance? None of these Inductive reactance is a force that tends to overcome the effects of counter emf Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is an opposition to current flow in ac circuits Inductive reactance is another term for counter emf None of these Inductive reactance is a force that tends to overcome the effects of counter emf Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is an opposition to current flow in ac circuits Inductive reactance is another term for counter emf ANSWER DOWNLOAD EXAMIANS APP
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