Electronic Principles The north pole of a magnet is the one: that has its molecules arranged in a random pattern that would be repelled by the south pole of another magnet None of these that would be attracted to the earth's south magnetic pole that would be attracted to the earth's north magnetic pole that has its molecules arranged in a random pattern that would be repelled by the south pole of another magnet None of these that would be attracted to the earth's south magnetic pole that would be attracted to the earth's north magnetic pole ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts chemical energy to electrical energy is called a: electric device thermocouple None of these solar cell chemical cell electric device thermocouple None of these solar cell chemical cell ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.6 A 0.4 A None of these 0.2 A 0.3 A 0.6 A 0.4 A None of these 0.2 A 0.3 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature None of these Stays the same Increases 0oC Decreases None of these Stays the same Increases 0oC Decreases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 410 Ohm None of these 400 Ohm 550 Ohm 310 Ohm 410 Ohm None of these 400 Ohm 550 Ohm 310 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the highest permeability? A ferromagnetic material A paramagnetic material All of these A diamagnetic material None of these A ferromagnetic material A paramagnetic material All of these A diamagnetic material None of these ANSWER DOWNLOAD EXAMIANS APP
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