Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage causes current to flow in two directions at the same time None of these The voltage reverses polarity periodically The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage causes current to flow in two directions at the same time None of these The voltage reverses polarity periodically The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff current source has a resistance of More than 100 k Ohm Less than 10 Ohm Less than 100 k Ohm At least 10 Ohm None of these More than 100 k Ohm Less than 10 Ohm Less than 100 k Ohm At least 10 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? 1.5 10.738 0.707 None of these 0.575 1.5 10.738 0.707 None of these 0.575 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? 90 degree 0 degree 26.6 degree None of these 180 degree 90 degree 0 degree 26.6 degree None of these 180 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values? 0.93 W None of these 0.041666666666667 0.93 V 9.3 W 0.93 W None of these 0.041666666666667 0.93 V 9.3 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the Q point moves along the load line, the voltage increases when the current Can be any of above None of these Stays the same Increases Decreases Can be any of above None of these Stays the same Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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