Electronic Principles The south pole of a magnet is the one: that would be repelled by the north pole of another magnet None of these that would be attracted to the earths north magnetic pole that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern that would be repelled by the north pole of another magnet None of these that would be attracted to the earths north magnetic pole that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: frequent changes in the direction of current through the coil causes heating effects in the core material the core is permitted to move freely within the coil changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these an increase in current through the coil causes no further increase in the mmf frequent changes in the direction of current through the coil causes heating effects in the core material the core is permitted to move freely within the coil changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these an increase in current through the coil causes no further increase in the mmf ANSWER DOWNLOAD EXAMIANS APP
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? None of these 600 V 24 V 4.73 0.4 V None of these 600 V 24 V 4.73 0.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: chemical cell None of these solar cell piezoelectric devices thermocouple chemical cell None of these solar cell piezoelectric devices thermocouple ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A paramagnetic material All of these A feiTomagnetic material None of these A diamagnetic material A paramagnetic material All of these A feiTomagnetic material None of these A diamagnetic material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an Ideal current source and series resistor Ideal current source and parallel resistor Ideal voltage source and parallel resistor Ideal voltage source and series resistor None of these Ideal current source and series resistor Ideal current source and parallel resistor Ideal voltage source and parallel resistor Ideal voltage source and series resistor None of these ANSWER DOWNLOAD EXAMIANS APP
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