Electronic Principles Doubling the operating voltage of a purely capacitive circuit: None of these multiplies the capacitive reactance by 7 cuts the capacitive reactance in half doubles the amount of capacitive reactance has no effect on the capacitive reactance None of these multiplies the capacitive reactance by 7 cuts the capacitive reactance in half doubles the amount of capacitive reactance has no effect on the capacitive reactance 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 from zero to its rms value from zero to its peak value None of these from 10% of the peak value to 70.7% of the peak value from 10% of the peak value to 90% of the peak value from zero to its rms value from zero to its peak value None of these from 10% of the peak value to 70.7% of the peak value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Decreases Stays the same 0oC None of these Increases Decreases Stays the same 0oC None of these Increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? None of these 250 µA 300 µA 350 µA 0.25 µA None of these 250 µA 300 µA 350 µA 0.25 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it? I = ER I = E/R E = I2R E = PR None of these I = ER I = E/R E = I2R E = PR None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? many Only those produced by thermal energy Same number as free electrons less than the free electrons None of these many Only those produced by thermal energy Same number as free electrons less than the free electrons None of these ANSWER DOWNLOAD EXAMIANS APP
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