Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Like magnetic poles repel, while unlike poles attract Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles repel, while unlike poles attract Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel None of these Current is induced in a conductor that is moving through a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Primary voltage None of these Secondary voltage Impossible to say Neither Primary voltage None of these Secondary voltage Impossible to say Neither ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for voltage in a series circuit? The total voltage in a series circuit is always less than the value of the smallest voltage None of these The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is equal to the average value of the individual voltages The total voltage is equal to the sum of the individual voltages in a series circuit The total voltage in a series circuit is always less than the value of the smallest voltage None of these The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is equal to the average value of the individual voltages The total voltage is equal to the sum of the individual voltages in a series circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs? P = I2R I = P/E P = IE None of these P = E2/R P = I2R I = P/E P = IE None of these P = E2/R 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? 2 k Ohm None of these 20 k Ohm 10 k Ohm 1 k Ohm 2 k Ohm None of these 20 k Ohm 10 k Ohm 1 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Voltage is None of these The flow of charged particles through a material Trie force that causes electrons to flow The number of free electrons in an atom The smallest electrically charged particle None of these The flow of charged particles through a material Trie force that causes electrons to flow The number of free electrons in an atom The smallest electrically charged particle ANSWER DOWNLOAD EXAMIANS APP
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