Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 18 V 12 V 30 V 24 V None of these 18 V 12 V 30 V 24 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: None of these a poor conductor of electrostatic fields a good conductor of magnetic fields a good conductor a good insulator None of these a poor conductor of electrostatic fields a good conductor of magnetic fields a good conductor a good insulator ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? 6 W 122 W 3 W None of these 64 W 6 W 122 W 3 W None of these 64 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true? All of these None of these Power dissipation of a pure capacitor increases with operating frequency Power dissipation of a pure capacitor decreases with operating frequency There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency All of these None of these Power dissipation of a pure capacitor increases with operating frequency Power dissipation of a pure capacitor decreases with operating frequency There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RC circuit? The total voltage is less than the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit None of these The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage leads the total current by less than 90 degree The total voltage is less than the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit None of these The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage leads the total current by less than 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Ammeter Ohmmeter Voltmeter Wattmeter None of these Ammeter Ohmmeter Voltmeter Wattmeter None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS