Electronic Principles A diode is in series with 220W. If the voltage across the resister is 4V, what is the current through the diode? 18.2 mA None of these 55.86 A 16.3 mA 55 A 18.2 mA None of these 55.86 A 16.3 mA 55 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 350 µA 250 µA 300 µA 0.25 µA None of these 350 µA 250 µA 300 µA 0.25 µA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the graph of current versus voltage is a straight line, the device is referred to as Linear None of these Active Bipolar Nonlinear Linear None of these Active Bipolar Nonlinear ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The north pole of a magnet is the one: that would be attracted to the earth's north magnetic pole that would be attracted to the earth's south magnetic pole that would be repelled by the south pole of another magnet that has its molecules arranged in a random pattern None of these that would be attracted to the earth's north magnetic pole that would be attracted to the earth's south magnetic pole that would be repelled by the south pole of another magnet that has its molecules arranged in a random pattern None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: 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 the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf None of these 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 the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RC circuit? The total voltage is greater 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 None of these The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is greater 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 None of these The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage is less than the sum of the voltages across the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
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