Electronic Principles Doubling the operating frequency of a capacitive circuit: cuts the capacitive reactance in half multiplies the capacitive reactance by 6.28 has no effect on the capacitive reactance None of these doubles the amount of a capacitive reactance cuts the capacitive reactance in half multiplies the capacitive reactance by 6.28 has no effect on the capacitive reactance None of these doubles the amount of a capacitive reactance 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? 3.75 mA None of these 3.2 mA 13 mA 0.05 mA 3.75 mA None of these 3.2 mA 13 mA 0.05 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? 64 W None of these 6 W 122 W 3 W 64 W None of these 6 W 122 W 3 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of electron current flow is: from right to left from positive to negative from neutral to positive None of these from negative to positive from right to left from positive to negative from neutral to positive None of these from negative to positive ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms cross through zero and reach positive and negative peaks at the same time All of these they have the same amplitude and frequency their waveforms are both ac or both dc None of these their waveforms cross through zero and reach positive and negative peaks at the same time All of these they have the same amplitude and frequency their waveforms are both ac or both dc None of these 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 90% of the peak value None of these from zero to its rms value from 10% of the peak value to 70.7% of the peak value from zero to its peak value from 10% of the peak value to 90% of the peak value None of these from zero to its rms value from 10% of the peak value to 70.7% of the peak value from zero to its peak value ANSWER DOWNLOAD EXAMIANS APP
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