Electronic Principles When a series RLC circuit is operating at its resonant frequency: inductive reactance is greater than the capacitive reactance inductive reactance is equal to the capacitive reactance capacitive reactance is greater than the inductive reactance None of these 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 capacitive reactance is greater than the inductive reactance None of these the difference between inductive and capacitive reactance is equal to the resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: multiplies the value of inductance by two None of these multiplies the value of inductance by four has no effect on the inductance reduces the value of inductance by one-half multiplies the value of inductance by two None of these multiplies the value of inductance by four has no effect on the inductance reduces the value of inductance by one-half ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Valence electrons None of these Thermal energy Doping Free electrons Valence electrons None of these Thermal energy Doping Free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current? 1750 mA None of these 17.5 mA 1.75 mA 175 mA 1750 mA None of these 17.5 mA 1.75 mA 175 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil frequent changes in the direction of current through the coil causes heating effects in the core material None of these an increase in current through the coil causes no further increase in the mmf changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil frequent changes in the direction of current through the coil causes heating effects in the core material None of these an increase in current through the coil causes no further increase in the mmf ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The peak value of a sine waveform is: None of these the amplitude at 70.7% of the maximum value the maximum positive or negative value the amplitude at 1.41 times the maximum value the amplitude at 90% of the maximum value None of these the amplitude at 70.7% of the maximum value the maximum positive or negative value the amplitude at 1.41 times the maximum value the amplitude at 90% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
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