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 3 W 64 W 122 W 6 W None of these 3 W 64 W 122 W 6 W 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? 12 V 24 V 18 V None of these 30 V 12 V 24 V 18 V None of these 30 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm 75 degree 30 degree 45 degree None of these 180 degree 75 degree 30 degree 45 degree None of these 180 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Holes are the minority carriers in which type of semiconductor? Extrinsic Intrinsic None of these n-type p-type Extrinsic Intrinsic None of these n-type p-type ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: 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 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts mechanical pressure to electrical energy is called a: solar cell None of these nicad cell piezoelectric device photodiode solar cell None of these nicad cell piezoelectric device photodiode ANSWER DOWNLOAD EXAMIANS APP
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