Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 24 V 18 V 30 V 12 V None of these 24 V 18 V 30 V 12 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is most likely used for measuring the rate of electron flow? Ohmmeter None of these Wattmeter Ammeter Voltmeter Ohmmeter None of these Wattmeter Ammeter Voltmeter 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 70.7% of the peak value from zero to its rms value from zero to its peak value from 10% of the peak value to 90% of the peak value None of these from 10% of the peak value to 70.7% of the peak value from zero to its rms value from zero to its peak value from 10% of the peak value to 90% of the peak value None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff? None of these 10 Ohm 30 Ohm 20 Ohm 100 Ohm None of these 10 Ohm 30 Ohm 20 Ohm 100 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the barrier potential of a silicon diode at room temperature? None of these 0.3V 1 V 0.7V 2 m V per degree Celsius None of these 0.3V 1 V 0.7V 2 m V per degree Celsius ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it? I = ER E = I2R I = E/R E = PR None of these I = ER E = I2R I = E/R E = PR None of these ANSWER DOWNLOAD EXAMIANS APP
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