Electronic Principles Which one of the following statements is true for the impedance of a series RC circuit? None of these The impedance is equal to the sum of the resistance and capacitive reactance The impedance is less than the sum of the resistance and capacitive reactance The impedance is greater than the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum None of these The impedance is equal to the sum of the resistance and capacitive reactance The impedance is less than the sum of the resistance and capacitive reactance The impedance is greater than the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: the time required to complete one full cycle equal to 0.707 times the peak amplitude the number of cycles completed in one second the time required for the voltage to rise from 10% to 90% of the peak amplitude None of these the time required to complete one full cycle equal to 0.707 times the peak amplitude the number of cycles completed in one second the time required for the voltage to rise from 10% to 90% of the peak amplitude None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RL circuit? None of these The current always has the same amplitude and phase for every part of the circuit The total current leads the total voltage by less than 90 The total current is less than the sum of the currents through the resistance and inductance The total current is equal to the sum of the currents through the resistance and inductance None of these The current always has the same amplitude and phase for every part of the circuit The total current leads the total voltage by less than 90 The total current is less than the sum of the currents through the resistance and inductance The total current is equal to the sum of the currents through the resistance and inductance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Amplify weak signals Emit light None of these Rectify line voltage Regulate voltage Amplify weak signals Emit light None of these Rectify line voltage Regulate voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Thermal energy Doping Valence electrons Free electrons None of these Thermal energy Doping Valence electrons Free electrons None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 312 Ohm 690 Ohm None of these 1590 Ohm less than 1 Ohm 312 Ohm 690 Ohm None of these 1590 Ohm less than 1 Ohm ANSWER DOWNLOAD EXAMIANS APP
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