Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Free electrons Thermal energy None of these Valence electrons Doping Free electrons Thermal energy None of these Valence electrons Doping ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 30.4 V 35.4 V 37.4 V None of these 38.74 V 30.4 V 35.4 V 37.4 V None of these 38.74 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A basic capacitor is composed of: None of these two coils separated by a dielectric two conductors separated by a dielectric two coils separated by a conductor two dielectrics separated by a conductor None of these two coils separated by a dielectric two conductors separated by a dielectric two coils separated by a conductor two dielectrics separated by a conductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm? 99.3 Ohm None of these 250 Ohm 70.7Ohm 60 Ohm 99.3 Ohm None of these 250 Ohm 70.7Ohm 60 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A high-pass filter: passes lower-frequency signals and reduces higher-frequency signals passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals None of these increases the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals None of these increases the level of all frequencies by a significant amount ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current is The flow of charged particles through a material None of these An imbalance of electrical charges The force that causes electrons to flow The number of free electrons in an atom The flow of charged particles through a material None of these An imbalance of electrical charges The force that causes electrons to flow The number of free electrons in an atom ANSWER DOWNLOAD EXAMIANS APP
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