Electronic Principles Current and voltage are said to be in phase when: they have the same amplitude and frequency their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time All of these None of these they have the same amplitude and frequency their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RL circuit? None of these The total current leads the total voltage by less than 90 The total current is equal to the sum of the currents through the resistance and inductance The total current is less than the sum of the currents through the resistance and inductance The current always has the same amplitude and phase for every part of the circuit None of these The total current leads the total voltage by less than 90 The total current is equal to the sum of the currents through the resistance and inductance The total current is less than the sum of the currents through the resistance and inductance The current always has the same amplitude and phase for every part of the circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage? 16 V None of these 15 V 8 V 7.5 V 16 V None of these 15 V 8 V 7.5 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current? 175 mA 1750 mA 17.5 mA None of these 1.75 mA 175 mA 1750 mA 17.5 mA None of these 1.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: is minimum at the resonant frequency None of these is maximum at the resonant frequency always decreases as the applied frequency increases always increases as the applied frequency increases is minimum at the resonant frequency None of these is maximum at the resonant frequency always decreases as the applied frequency increases always increases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely inductive circuit: cuts the current through the inductors one-half increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit None of these doubles the amount of current through the inductors has no effect on the current through the inductors cuts the current through the inductors one-half increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit None of these doubles the amount of current through the inductors has no effect on the current through the inductors ANSWER DOWNLOAD EXAMIANS APP
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