Electronic Principles What kind of battery is most likely included in a cordless electric knife? None of these Mercury-cell battery Zinc-carbon battery Lead-acid battery Nicad battery None of these Mercury-cell battery Zinc-carbon battery Lead-acid battery Nicad battery ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: an increase in current through the coil causes no further increase in the mmf frequent changes in the direction of current through the coil causes heating effects in the core material None of these the core is permitted to move freely within the coil changing the polarity of the current in the coil changes the polarity of the magnetic field around the core an increase in current through the coil causes no further increase in the mmf frequent changes in the direction of current through the coil causes heating effects in the core material None of these the core is permitted to move freely within the coil changing the polarity of the current in the coil changes the polarity of the magnetic field around the core 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? 180 degree 26.6 degree 0 degree None of these 90 degree 180 degree 26.6 degree 0 degree None of these 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The saturation point is approximately the same as lower end of the load line infinity None of these upper end of the load line cutoff point lower end of the load line infinity None of these upper end of the load line cutoff point 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? 24 V 12 V 18 V None of these 30 V 24 V 12 V 18 V None of these 30 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation? 300 mW 10 mW 20 mW 200 mW None of these 300 mW 10 mW 20 mW 200 mW None of these ANSWER DOWNLOAD EXAMIANS APP
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