Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Doping None of these Valence electrons Free electrons Thermal energy Doping None of these Valence electrons Free electrons Thermal energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 310 Ohm 410 Ohm 550 Ohm None of these 400 Ohm 310 Ohm 410 Ohm 550 Ohm None of these 400 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements applies to common, non-rechargeable flashlight batteries? Common flashlight batteries are primary dry-cell batteries Common flashlight batteries are primary wet-cell batteries None of these Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are secondary wet-cell batteries Common flashlight batteries are primary dry-cell batteries Common flashlight batteries are primary wet-cell batteries None of these Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are secondary wet-cell batteries ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When applying a square waveform to a capacitor, the circuit tends to: None of these peak the voltage and round off the current waveforms peak both the voltage and current waveforms round off both the voltage and current waveforms peak the current and round off the voltage waveforms None of these peak the voltage and round off the current waveforms peak both the voltage and current waveforms round off both the voltage and current waveforms peak the current and round off the voltage waveforms ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What are the main parts of an atom? Protons only Electrons, ions, and neutrons None of these Electrons, protons, and ions Electrons, protons, and neutrons Protons only Electrons, ions, and neutrons None of these Electrons, protons, and ions Electrons, protons, and neutrons 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 None of these 37.4 V 38.74 V 30.4 V 35.4 V None of these 37.4 V 38.74 V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS