Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 690 Ohm less than 1 Ohm None of these 1590 Ohm 312 Ohm 690 Ohm less than 1 Ohm None of these 1590 Ohm 312 Ohm 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? 310 Ohm 410 Ohm 400 Ohm None of these 550 Ohm 310 Ohm 410 Ohm 400 Ohm None of these 550 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 30 V 12 V 24 V 18 V None of these 30 V 12 V 24 V 18 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of a generator? Like magnetic poles attract; unlike poles repel Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field None of these Like magnetic poles repel; unlike poles attract Like magnetic poles attract; unlike poles repel Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field None of these Like magnetic poles repel; unlike poles attract ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: None of these increasing the area of the plates increasing the frequency of the applied voltage increasing the voltage applied to the plates decreasing the area of the plates None of these increasing the area of the plates increasing the frequency of the applied voltage increasing the voltage applied to the plates decreasing the area of the plates 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 There is no valid comparison Permeance Reluctance Retentivity Permeability There is no valid comparison Permeance Reluctance Retentivity ANSWER DOWNLOAD EXAMIANS APP
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