Electronic Principles What is the barrier potential of a silicon diode at room temperature? None of these 0.3V 1 V 2 m V per degree Celsius 0.7V None of these 0.3V 1 V 2 m V per degree Celsius 0.7V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 180 0.5 None of these 0.25 4 180 0.5 None of these 0.25 4 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately reflects the nature of ac power? The current in an ac circuit flows in two directions at the same time The current in an ac circuit changes direction periodically None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in one direction, but changes value periodically The current in an ac circuit flows in two directions at the same time The current in an ac circuit changes direction periodically None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in one direction, but changes value periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: they have the same amplitude and frequency None of these their waveforms are both ac or both dc All of these their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency None of these their waveforms are both ac or both dc All of these their waveforms cross through zero and reach positive and negative peaks at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the collector current increases, what does the current gain do? any of the above stays the same decreases None of these increases any of the above stays the same decreases None of these increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How many types of flow are there in a semiconductor? 1 2 None of these 3 1 2 None of these 3 ANSWER DOWNLOAD EXAMIANS APP
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