Electronic Principles For a pure capacitor: ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current is converted to dc voltage ac current leads the voltage by 90 degree None of these ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current is converted to dc voltage ac current leads the voltage by 90 degree None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RC circuit? The total current is less than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit None of these The total current. is greater than the sum of the currents for the resistance and capacitance The total current is less than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit None of these The total current. is greater than the sum of the currents for the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The opposition to a build-up of magnetic fields The rate of change of the number of lines of magnetic force None of these The force that maintains lines of force The concentration of lines of magnetic force The opposition to a build-up of magnetic fields The rate of change of the number of lines of magnetic force None of these The force that maintains lines of force The concentration of lines of magnetic force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating above its resonant frequency, a series RLC circuit has the characteristics of a: series RL circuit series RC circuit None of these series RLC circuit operated below its resonant frequency purely resistive circuit series RL circuit series RC circuit None of these series RLC circuit operated below its resonant frequency purely resistive circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an Ideal current source and parallel resistor Ideal voltage source and series resistor Ideal voltage source and parallel resistor None of these Ideal current source and series resistor Ideal current source and parallel resistor Ideal voltage source and series resistor Ideal voltage source and parallel resistor None of these Ideal current source and series resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.3 A None of these 0.6 A 0.2 A 0.4 A 0.3 A None of these 0.6 A 0.2 A 0.4 A ANSWER DOWNLOAD EXAMIANS APP
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