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 18 V None of these 12 V 24 V 30 V 18 V None of these 12 V 24 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? None of these 26.6 degree 0 degree 90 degree 180 degree None of these 26.6 degree 0 degree 90 degree 180 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: None of these thermocouple solar cell chemical cell piezoelectric devices None of these thermocouple solar cell chemical cell piezoelectric devices 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? None of these 64 W 6 W 122 W 3 W None of these 64 W 6 W 122 W 3 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? 224 ohm None of these 88.8 ohm 89.3 ohm 77.7 ohm 224 ohm None of these 88.8 ohm 89.3 ohm 77.7 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring opposition to current flow in a circuit? Wattmeter Ohmmeter Ammeter None of these Voltmeter Wattmeter Ohmmeter Ammeter None of these Voltmeter ANSWER DOWNLOAD EXAMIANS APP
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