Electronic Principles What is the barrier potential of a silicon diode at room temperature? None of these 1 V 0.7V 2 m V per degree Celsius 0.3V None of these 1 V 0.7V 2 m V per degree Celsius 0.3V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: 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 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 24 V 600 V 0.4 V None of these 4.73 24 V 600 V 0.4 V None of these 4.73 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 6 Ohm 5 Ohm None of these 50 Ohm or more 100 Ohm 6 Ohm 5 Ohm None of these 50 Ohm or more 100 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a parallel RLC circuit: always decreases as the applied frequency increases is maximum at the resonant frequency None of these always increases as the applied frequency increases is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always decreases as the applied frequency increases is maximum at the resonant frequency None of these always increases as the applied frequency increases is equal to the sum of the values of resistance, inductive reactance and capacitive reactance 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 350 µA None of these 0.25 µA 250 µA 300 µA 350 µA None of these 0.25 µA 250 µA ANSWER DOWNLOAD EXAMIANS APP
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