Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 0.05 mA 3.2 mA 13 mA None of these 3.75 mA 0.05 mA 3.2 mA 13 mA None of these 3.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Valence electrons Thermal energy None of these Free electrons Doping Valence electrons Thermal energy None of these Free electrons Doping ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: cuts the capacitive reactance in half doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 None of these has no effect on the capacitive reactance cuts the capacitive reactance in half doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 None of these has no effect on the capacitive reactance 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? E = I2R None of these E = PR I = E/R I = ER E = I2R None of these E = PR I = E/R I = ER ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a parallel RLC circuit is operating at its resonant frequency: inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is greater than the capacitive reactance inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is greater than the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? P = PR None of these R = E2/P I = P/E P = E2/R P = PR None of these R = E2/P I = P/E P = E2/R ANSWER DOWNLOAD EXAMIANS APP
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