Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Valence electrons Thermal energy Free electrons None of these Doping Valence electrons Thermal energy Free electrons None of these Doping ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a series RLC circuit is operating at its resonant frequency: capacitive reactance is greater than the inductive reactance None of these inductive reactance is equal to the capacitive reactance inductive reactance is greater than the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance capacitive reactance is greater than the inductive reactance None of these inductive reactance is equal to the capacitive reactance inductive reactance is greater than the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: ac current and voltage are exactly in phase ac current leads the voltage by 90 degree ac current is converted to dc voltage None of these ac current lags the voltage by 90 degree ac current and voltage are exactly in phase ac current leads the voltage by 90 degree ac current is converted to dc voltage None of these ac current lags the voltage by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: reduces the value of inductance by one-half has no effect on the inductance multiplies the value of inductance by four None of these multiplies the value of inductance by two reduces the value of inductance by one-half has no effect on the inductance multiplies the value of inductance by four None of these multiplies the value of inductance by two ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? 2.02 A 0.955 A 0.41666666666667 0.02 A None of these 2.02 A 0.955 A 0.41666666666667 0.02 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductance of a series inductor circuit is: None of these equal to the sum of the individual inductance values equal to the source voltage divided by total current equal to the sum of the individual inductive-reactance values less than the value of the smallest inductor None of these equal to the sum of the individual inductance values equal to the source voltage divided by total current equal to the sum of the individual inductive-reactance values less than the value of the smallest inductor ANSWER DOWNLOAD EXAMIANS APP
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