Electronic Principles An ideal voltage source has Zero internal resistance A load-dependent current Infinite internal resistance A load dependent voltage None of these Zero internal resistance A load-dependent current Infinite internal resistance A load dependent voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the highest permeability? A paramagnetic material All of these A diamagnetic material A ferromagnetic material None of these A paramagnetic material All of these A diamagnetic material A ferromagnetic material None of these 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 30 degree 45 degree None of these 75 degree 180 degree 30 degree 45 degree None of these 75 degree 180 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff? 10 k Ohm 20 k Ohm 1 k Ohm None of these 2 k Ohm 10 k Ohm 20 k Ohm 1 k Ohm None of these 2 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: has no effect on the inductance multiplies the value of inductance by two reduces the value of inductance by one-half None of these multiplies the value of inductance by four has no effect on the inductance multiplies the value of inductance by two reduces the value of inductance by one-half None of these multiplies the value of inductance by four 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 None of these 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 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 None of these 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 changing the polarity of the current in the coil changes the polarity of the magnetic field around the core ANSWER DOWNLOAD EXAMIANS APP
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