Electronic Principles Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage? 170 V 120 V None of these 100 V 180 V 170 V 120 V None of these 100 V 180 V 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? E = I2R I = E/R I = ER None of these E = PR E = I2R I = E/R I = ER None of these E = PR ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a capacitive circuit: doubles the amount of a capacitive reactance None of these cuts the capacitive reactance in half has no effect on the capacitive reactance multiplies the capacitive reactance by 6.28 doubles the amount of a capacitive reactance None of these cuts the capacitive reactance in half has no effect on the capacitive reactance multiplies the capacitive reactance by 6.28 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 12 V 24 V None of these 30 V 18 V 12 V 24 V None of these 30 V 18 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When applying a square waveform to a capacitor, the circuit tends to: peak the voltage and round off the current waveforms peak both the voltage and current waveforms None of these peak the current and round off the voltage waveforms round off both the voltage and current waveforms peak the voltage and round off the current waveforms peak both the voltage and current waveforms None of these peak the current and round off the voltage waveforms round off both the voltage and current waveforms ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rise time of a pulse waveform is the time required for the voltage to rise: None of these from zero to its peak value from 10% of the peak value to 90% of the peak value from zero to its rms value from 10% of the peak value to 70.7% of the peak value None of these from zero to its peak value from 10% of the peak value to 90% of the peak value from zero to its rms value from 10% of the peak value to 70.7% of the peak value ANSWER DOWNLOAD EXAMIANS APP
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