Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 43891 43922 3 2 None of these 43891 43922 3 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: One-half the primary current Same as the primary current Twice the primary current No more than 10% less than the primary current None of these One-half the primary current Same as the primary current Twice the primary current No more than 10% less than the primary current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For normal operation of the transistor, the collector diode has to be None of these Forward-biased Nonconducting Reverse-biased Operating in the breakdown region None of these Forward-biased Nonconducting Reverse-biased Operating in the breakdown region ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely capacitive circuit? The ac voltage leads the current by 90 degree Capacitive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow None of these The ac voltage leads the current by 90 degree Capacitive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a parallel RLC circuit: None of these always decreases as the applied frequency increases is maximum at the resonant frequency is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always increases as the applied frequency increases None of these always decreases as the applied frequency increases is maximum at the resonant frequency is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always increases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: they have the same amplitude and frequency All of these None of these their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc they have the same amplitude and frequency All of these None of these their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc ANSWER DOWNLOAD EXAMIANS APP
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