Electronic Principles Which one of the following statements is true for the impedance of a series RC circuit? The impedance is greater than either the resistance or capacitive reactance but less than their sum The impedance is less than the sum of the resistance and capacitive reactance None of these The impedance is greater than the sum of the resistance and capacitive reactance The impedance is equal to the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum The impedance is less than the sum of the resistance and capacitive reactance None of these The impedance is greater than the sum of the resistance and capacitive reactance The impedance is equal to the sum of the resistance and capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation? 10 mW 200 mW 300 mW None of these 20 mW 10 mW 200 mW 300 mW None of these 20 mW ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 35.4 V None of these 38.74 V 37.4 V 30.4 V 35.4 V None of these 38.74 V 37.4 V 30.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A paramagnetic material A feiTomagnetic material A diamagnetic material None of these All of these A paramagnetic material A feiTomagnetic material A diamagnetic material None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Thermal energy None of these Valence electrons Doping Free electrons Thermal energy None of these Valence electrons Doping Free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Magnetomotive force None of these Reluctance Flux density Number of lines of force Magnetomotive force None of these Reluctance Flux density Number of lines of force ANSWER DOWNLOAD EXAMIANS APP
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