Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Thermal energy None of these Free electrons Doping Valence electrons Thermal energy None of these Free electrons Doping Valence electrons 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
Electronic Principles Doubling the operating frequency of an inductive circuit: cuts the inductive reactance in half doubles the amount of inductive reactance None of these multiplies the inductive reactance by 6.28 has no effect on the inductive reactance cuts the inductive reactance in half doubles the amount of inductive reactance None of these multiplies the inductive reactance by 6.28 has no effect on the inductive reactance 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? 0.25 µA None of these 350 µA 300 µA 250 µA 0.25 µA None of these 350 µA 300 µA 250 µA 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 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 flows in one direction at a steady level None of these The current in an ac circuit changes direction periodically 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 flows in one direction at a steady level None of these The current in an ac circuit changes direction periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff? 60 Ohm None of these 50 Ohm 100 Ohm or more 10 Ohm 60 Ohm None of these 50 Ohm 100 Ohm or more 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
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