Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract None of these Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract None of these Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field 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? 1750 mA None of these 17.5 mA 1.75 mA 175 mA 1750 mA None of these 17.5 mA 1.75 mA 175 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Electrons, protons, and neutrons Electrons, protons, and ions Electrons, ions, and neutrons None of these Protons only Electrons, protons, and neutrons Electrons, protons, and ions Electrons, ions, and neutrons None of these Protons only ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In an intrinsic semiconductor, the number of free electrons Is less than the number of holes Impossible to say None of these Equals the number of holes Is greater than the number of holes Is less than the number of holes Impossible to say None of these Equals the number of holes Is greater than the number of holes ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff? 20 k Ohm 2 k Ohm 10 k Ohm None of these 1 k Ohm 20 k Ohm 2 k Ohm 10 k Ohm None of these 1 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used for creating static electricity? Light energy Solar energy Chemical energy Mechanical energy None of these Light energy Solar energy Chemical energy Mechanical energy None of these ANSWER DOWNLOAD EXAMIANS APP
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