Electronic Principles The barrier potential accross each depletion layer is 20 V 0.8 V None of these 0.7 V 20 V 0.8 V None of these 0.7 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: cuts the capacitive reactance in half doubles the amount of capacitive reactance has no effect on the capacitive reactance multiplies the capacitive reactance by 7 None of these cuts the capacitive reactance in half doubles the amount of capacitive reactance has no effect on the capacitive reactance multiplies the capacitive reactance by 7 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? None of these Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the core material is saturated None of these Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the core material is saturated ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: the core is permitted to move freely within the coil 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 changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these the core is permitted to move freely within the coil 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 changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RC circuit? The total voltage is equal to the sum of the voltages across the resistance and capacitance None of these The total voltage is less than the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit The total voltage leads the total current by less than 90 degree The total voltage is equal to the sum of the voltages across the resistance and capacitance None of these The total voltage is less than the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit The total voltage leads the total current by less than 90 degree 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 45 degree None of these 180 degree 30 degree 75 degree 45 degree None of these 180 degree 30 degree ANSWER DOWNLOAD EXAMIANS APP
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