Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? None of these 9 85 6 81 None of these 9 85 6 81 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms are both ac or both dc they have the same amplitude and frequency None of these All of these their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc they have the same amplitude and frequency None of these All of these their waveforms cross through zero and reach positive and negative peaks at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? 88.8 ohm 224 ohm None of these 89.3 ohm 77.7 ohm 88.8 ohm 224 ohm None of these 89.3 ohm 77.7 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Increases 0oC Decreases Stays the same None of these Increases 0oC Decreases Stays the same None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles As the temperature increases, the current gain decreases increases None of these can be any of the above contant decreases increases None of these can be any of the above contant ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of electron current flow is: from right to left from positive to negative None of these from negative to positive from neutral to positive from right to left from positive to negative None of these from negative to positive from neutral to positive ANSWER DOWNLOAD EXAMIANS APP
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