Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? None of these Thermal energy Free electrons Doping Valence electrons None of these Thermal energy Free electrons Doping Valence 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? None of these Number of lines of force Flux density Magnetomotive force Reluctance None of these Number of lines of force Flux density Magnetomotive force Reluctance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: None of these multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half reduces the value of inductance by one-fourth None of these multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half reduces the value of inductance by one-fourth ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rise time of a pulse waveform is the time required for the voltage to rise: from 10% of the peak value to 90% of the peak value from 10% of the peak value to 70.7% of the peak value None of these from zero to its peak value from zero to its rms value from 10% of the peak value to 90% of the peak value from 10% of the peak value to 70.7% of the peak value None of these from zero to its peak value from zero to its rms value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a parallel RLC circuit: is maximum at the resonant frequency is equal to the sum of the values of resistance, inductive reactance and capacitive reactance None of these always decreases as the applied frequency increases always increases as the applied frequency increases is maximum at the resonant frequency is equal to the sum of the values of resistance, inductive reactance and capacitive reactance None of these always decreases as the applied frequency increases always increases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: always decreases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency always increases as the applied frequency increases None of these always decreases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency always increases as the applied frequency increases None of these ANSWER DOWNLOAD EXAMIANS APP
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