Electronic Principles When a series RLC circuit is operating at its resonant frequency: inductive reactance is greater than the capacitive reactance capacitive reactance is greater than the inductive reactance inductive reactance is equal to the capacitive reactance None of these the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is greater than the capacitive reactance capacitive reactance is greater than the inductive reactance inductive reactance is equal to the capacitive reactance None of these the difference between inductive and capacitive reactance is equal to the resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the: commutator rotor battery None of these armature commutator rotor battery None of these armature ANSWER DOWNLOAD EXAMIANS APP
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 None of these 3.75 mA 3.2 mA 13 mA 0.05 mA None of these 3.75 mA 3.2 mA 13 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Free electrons Valence electrons Thermal energy None of these Doping Free electrons Valence electrons Thermal energy None of these Doping ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When applying a square waveform to a capacitor, the circuit tends to: peak the current and round off the voltage waveforms None of these peak both the voltage and current waveforms round off both the voltage and current waveforms peak the voltage and round off the current waveforms peak the current and round off the voltage waveforms None of these peak both the voltage and current waveforms round off both the voltage and current waveforms peak the voltage and round off the current waveforms ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 38.74 V None of these 37.4 V 35.4 V 30.4 V 38.74 V None of these 37.4 V 35.4 V 30.4 V ANSWER DOWNLOAD EXAMIANS APP
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