Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Resistances provide the only opposition to current flow Inductive reactance provides the only opposition to current flow None of these Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow Inductive reactance provides the only opposition to current flow None of these Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A high-pass filter: passes higher-frequency signals and reduces lower-frequency signals increases the level of all frequencies by a significant amount None of these has no effect on ac signals passes lower-frequency signals and reduces higher-frequency signals passes higher-frequency signals and reduces lower-frequency signals increases the level of all frequencies by a significant amount None of these has no effect on ac signals passes lower-frequency signals and reduces higher-frequency signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz? 628 Ohm 100 Ohm 444 Ohm None of these Less than 1 Ohm 628 Ohm 100 Ohm 444 Ohm None of these Less than 1 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic silicon crystal acts approximately like an insulator a piece of copper wire a battery a conductor None of these an insulator a piece of copper wire a battery a conductor None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductance of a series inductor circuit is: equal to the sum of the individual inductance values equal to the sum of the individual inductive-reactance values None of these less than the value of the smallest inductor equal to the source voltage divided by total current equal to the sum of the individual inductance values equal to the sum of the individual inductive-reactance values None of these less than the value of the smallest inductor equal to the source voltage divided by total current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? 122 W 64 W None of these 6 W 3 W 122 W 64 W None of these 6 W 3 W ANSWER DOWNLOAD EXAMIANS APP
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