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? 28.4 mA 68.4 mA 34.4 mA None of these 24.2 mA 28.4 mA 68.4 mA 34.4 mA None of these 24.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 3.75 mA 0.05 mA 13 mA None of these 3.2 mA 3.75 mA 0.05 mA 13 mA None of these 3.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: None of these a good insulator a good conductor of magnetic fields a good conductor a poor conductor of electrostatic fields None of these a good insulator a good conductor of magnetic fields a good conductor a poor conductor of electrostatic fields ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the barrier potential of a silicon diode at room temperature? 0.7V 1 V 0.3V None of these 2 m V per degree Celsius 0.7V 1 V 0.3V None of these 2 m V per degree Celsius ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: a temporary magnet a natural magnet an artificial magnet a paramagnetic alloy None of these a temporary magnet a natural magnet an artificial magnet a paramagnetic alloy None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Permeability Permeance There is no valid comparison Reluctance Retentivity Permeability Permeance There is no valid comparison Reluctance Retentivity ANSWER DOWNLOAD EXAMIANS APP
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