Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? None of these Combinations of resistance and inductive reactance provide any opposition to current flow Inductive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow The ac voltage lags the current by 90 degree None of these Combinations of resistance and inductive reactance provide any opposition to current flow Inductive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow The ac voltage lags the current by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of a generator? Like magnetic poles attract; unlike poles repel None of these Like magnetic poles repel; unlike poles attract Current flowing through a conductor generates a magnetic field Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel None of these Like magnetic poles repel; unlike poles attract Current flowing through a conductor generates a magnetic field Current is induced in a conductor that is moving through a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? 30 Ohm 60 Ohm 120 Ohm 754 Ohm None of these 30 Ohm 60 Ohm 120 Ohm 754 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 410 Ohm None of these 310 Ohm 400 Ohm 550 Ohm 410 Ohm None of these 310 Ohm 400 Ohm 550 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely capacitive circuit? Capacitive reactance provides the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow Resistances provide the only opposition to current flow The ac voltage leads the current by 90 degree None of these Capacitive reactance provides the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow Resistances provide the only opposition to current flow The ac voltage leads the current by 90 degree None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a parallel RLC circuit is operating at its resonant frequency: inductive reactance is equal to the capacitive reactance inductive reactance is greater than the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance None of these capacitive reactance is greater than the inductive reactance inductive reactance is equal to the capacitive reactance inductive reactance is greater than the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance None of these capacitive reactance is greater than the inductive reactance ANSWER DOWNLOAD EXAMIANS APP
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