Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current? P = E2/R None of these I = P/E P = IE P = I2R P = E2/R None of these I = P/E P = IE P = I2R 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? 68.4 mA 34.4 mA 28.4 mA 24.2 mA None of these 68.4 mA 34.4 mA 28.4 mA 24.2 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Absolute Zero temperature equals -273o C 0o C None of these 25o C -276o C -273o C 0o C None of these 25o C -276o C ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the highest permeability? A diamagnetic material All of these A paramagnetic material A ferromagnetic material None of these A diamagnetic material All of these A paramagnetic material A ferromagnetic material None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Impossible to say Neither Secondary voltage None of these Primary voltage Impossible to say Neither Secondary voltage None of these Primary voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between a conductor and an insulator? An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all An insulator allows current to flow much easier than a conductor does The difference between conductors and insulators depends on how they are used None of these A conductor allows current to flow much easier than an insulator does An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all An insulator allows current to flow much easier than a conductor does The difference between conductors and insulators depends on how they are used None of these A conductor allows current to flow much easier than an insulator does ANSWER DOWNLOAD EXAMIANS APP
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