Electronic Principles Current and voltage are said to be in phase when: their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc All of these None of these their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 6 Ohm 100 Ohm 5 Ohm None of these 50 Ohm or more 6 Ohm 100 Ohm 5 Ohm None of these 50 Ohm or more ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: ac current is converted to dc voltage None of these ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree ac current and voltage are exactly in phase ac current is converted to dc voltage None of these ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree ac current and voltage are exactly in phase ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of Kirchhoffs current law? The algebraic sum of currents entering and leaving a point is equal to zero The current through a resistance is proportional to the value of resistance and the IR drop across it The algebraic sum of currents in a loop is equal to zero None of these The total current in a parallel circuit is less than the value of the smallest current The algebraic sum of currents entering and leaving a point is equal to zero The current through a resistance is proportional to the value of resistance and the IR drop across it The algebraic sum of currents in a loop is equal to zero None of these The total current in a parallel circuit is less than the value of the smallest current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? None of these I = P/E P = E2/R P = PR R = E2/P None of these I = P/E P = E2/R P = PR R = E2/P ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an None of these Ideal voltage source and series resistor Ideal voltage source and parallel resistor Ideal current source and series resistor Ideal current source and parallel resistor None of these Ideal voltage source and series resistor Ideal voltage source and parallel resistor Ideal current source and series resistor Ideal current source and parallel resistor ANSWER DOWNLOAD EXAMIANS APP
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