Electronic Principles How much current flows through a 60-W light bulb that is operating at 120 V? 7200 A 0.5A 180 A 0.083333333333333 None of these 7200 A 0.5A 180 A 0.083333333333333 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source? None of these 0.995 mA 0.151 mA 157 raA 2.02 A None of these 0.995 mA 0.151 mA 157 raA 2.02 A 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 88.8 ohm 77.7 ohm None of these 89.3 ohm 224 ohm 88.8 ohm 77.7 ohm None of these 89.3 ohm 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 the core is permitted to move freely within the coil None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core frequent changes in the direction of current through the coil causes heating effects in the core material an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core frequent changes in the direction of current through the coil causes heating effects in the core material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Doping Thermal energy Valence electrons Free electrons None of these Doping Thermal energy Valence electrons Free electrons None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? 120 Ohm 60 Ohm None of these 30 Ohm 754 Ohm 120 Ohm 60 Ohm None of these 30 Ohm 754 Ohm ANSWER DOWNLOAD EXAMIANS APP
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