Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Inductive reactance provides the only opposition to current flow The ac voltage lags the current by 90 degree None of these Resistances provide the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow Inductive reactance provides the only opposition to current flow The ac voltage lags the current by 90 degree None of these Resistances provide the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A high-pass filter: has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals increases the level of all frequencies by a significant amount None of these has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals increases the level of all frequencies by a significant amount None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? An electron that has twice the amount of charge of a normal electron An electron that costs nothing An electron that has no electrical charge An electron that has been freed from its parent atom None of these An electron that has twice the amount of charge of a normal electron An electron that costs nothing An electron that has no electrical charge An electron that has been freed from its parent atom None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a direct statement of Ohm's law? The algebraic sum of voltages in a loop is equal to zero None of these The algebraic sum of currents entering and leaving a point is equal to zero The total resistance of a parallel circuit is less than the value of the smallest resistance The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The algebraic sum of voltages in a loop is equal to zero None of these The algebraic sum of currents entering and leaving a point is equal to zero The total resistance of a parallel circuit is less than the value of the smallest resistance The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rms value of a sine waveform is: equal to 0.707 times the peak amplitude None of these the time required to complete one full cycle the number of cycles completed in one second equal to 1.41 times the peak amplitude equal to 0.707 times the peak amplitude None of these the time required to complete one full cycle the number of cycles completed in one second equal to 1.41 times the peak amplitude ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 13 mA 0.05 mA 3.2 mA 3.75 mA None of these 13 mA 0.05 mA 3.2 mA 3.75 mA None of these ANSWER DOWNLOAD EXAMIANS APP
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