Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 690 Ohm less than 1 Ohm 1590 Ohm None of these 312 Ohm 690 Ohm less than 1 Ohm 1590 Ohm None of these 312 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The knee voltage of a diode is approximately equal to the Forward voltage None of these Breakdown voltage Barrier potential Applied voltage Forward voltage None of these Breakdown voltage Barrier potential Applied voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total capacitance of a series capacitor circuit is: equal to the sun of the individual capacitive-reactance values equal to the source voltage divided by total current equal to the sum of the individual capacitance values less than the value of the smallest capacitor None of these equal to the sun of the individual capacitive-reactance values equal to the source voltage divided by total current equal to the sum of the individual capacitance values less than the value of the smallest capacitor None of these 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? None of these 0.05 mA 13 mA 3.2 mA 3.75 mA None of these 0.05 mA 13 mA 3.2 mA 3.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: All of these None of these their waveforms are both ac or both dc they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time All of these None of these their waveforms are both ac or both dc they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? 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 Combinations of resistance and inductive reactance provide any opposition to current flow None of these 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 Combinations of resistance and inductive reactance provide any opposition to current flow None of these ANSWER DOWNLOAD EXAMIANS APP
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