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? 24.2 mA 34.4 mA 28.4 mA None of these 68.4 mA 24.2 mA 34.4 mA 28.4 mA None of these 68.4 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the highest permeability? A ferromagnetic material A paramagnetic material None of these All of these A diamagnetic material A ferromagnetic material A paramagnetic material None of these All of these A diamagnetic material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 7.8 µA None of these 14.8 µA 10.3 µA 7.75 µA 7.8 µA None of these 14.8 µA 10.3 µA 7.75 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Silicon atoms combine into an orderly pattern called a Crystal Covalent bond Semiconductor None of these Valence orbit Crystal Covalent bond Semiconductor None of these Valence orbit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? 0.707 1.5 0.575 10.738 None of these 0.707 1.5 0.575 10.738 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: None of these how well the material concentrates electrostatic lines of force the amount of opposition to the current flow the amount of voltage it can withstand before breaking down how well the material concentrates magnetic lines of force None of these how well the material concentrates electrostatic lines of force the amount of opposition to the current flow the amount of voltage it can withstand before breaking down how well the material concentrates magnetic lines of force ANSWER DOWNLOAD EXAMIANS APP
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