Electronic Principles The core of an electromagnet is said to be in saturation when: the core is permitted to move freely within the coil 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 None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil 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 None of these 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 kind of device is a diode? Unipolar Nonlinear Linear None of these Bilateral Unipolar Nonlinear Linear None of these Bilateral ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Holes act like: None of these Crystals Positive charges Negative charges Atoms None of these Crystals Positive charges Negative charges Atoms ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of conventional current flow is: from positive to negative from negative to positive None of these from left to right from neutral to positive from positive to negative from negative to positive None of these from left to right from neutral to positive ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? 60 Ohm 754 Ohm 30 Ohm None of these 120 Ohm 60 Ohm 754 Ohm 30 Ohm None of these 120 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The Norton current is sometimes called the Shorted-load current None of these Thevenin current Open-load current Thevenin voltage Shorted-load current None of these Thevenin current Open-load current Thevenin voltage ANSWER DOWNLOAD EXAMIANS APP
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