Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? None of these Inductive reactance provides the only opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow None of these Inductive reactance provides the only opposition to current flow The ac voltage lags the current by 90 degree 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 Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA? 20 V None of these 0.17 V 10.17 V 18.8 V 20 V None of these 0.17 V 10.17 V 18.8 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Emit light Amplify weak signals Regulate voltage Rectify line voltage None of these Emit light Amplify weak signals Regulate voltage Rectify line voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: reduces the value of inductance by one-half multiplies the value of inductance by four multiplies the value of inductance by two has no effect on the inductance None of these reduces the value of inductance by one-half multiplies the value of inductance by four multiplies the value of inductance by two has no effect on the inductance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit? None of these Reluctance Magnetomotive force Number of lines of force Flux density None of these Reluctance Magnetomotive force Number of lines of force Flux density ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rise time of a pulse waveform is the time required for the voltage to rise: from 10% of the peak value to 70.7% of the peak value None of these from zero to its rms value from zero to its peak value from 10% of the peak value to 90% of the peak value from 10% of the peak value to 70.7% of the peak value None of these from zero to its rms value from zero to its peak value from 10% of the peak value to 90% of the peak value ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS