Electronic Principles Current can flow through a normally open push button switch as long as: you are not pressing the button None of these its contact remain open you are pressing the button its contact remain open you are not pressing the button None of these its contact remain open you are pressing the button its contact remain open ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the barrier potential of a silicon diode at room temperature? 0.3V 0.7V None of these 2 m V per degree Celsius 1 V 0.3V 0.7V None of these 2 m V per degree Celsius 1 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 300 µA None of these 0.25 µA 350 µA 250 µA 300 µA None of these 0.25 µA 350 µA 250 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff? 20 k Ohm None of these 10 k Ohm 2 k Ohm 1 k Ohm 20 k Ohm None of these 10 k Ohm 2 k Ohm 1 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: 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 the number of cycles completed in one second equal to 0.707 times the peak amplitude 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 the number of cycles completed in one second equal to 0.707 times the peak amplitude ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Permeance Retentivity Reluctance There is no valid comparison Permeability Permeance Retentivity Reluctance There is no valid comparison Permeability ANSWER DOWNLOAD EXAMIANS APP
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