Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? None of these 208 V 707 V 651 V 700 V None of these 208 V 707 V 651 V 700 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Same as the primary current Twice the primary current No more than 10% less than the primary current One-half the primary current None of these Same as the primary current Twice the primary current No more than 10% less than the primary current One-half the primary current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a series RLC circuit is operating at its resonant frequency: capacitive reactance is greater than the inductive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is greater than the capacitive reactance inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is greater than the capacitive reactance inductive reactance is equal to the capacitive reactance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 37.4 V None of these 35.4 V 30.4 V 38.74 V 37.4 V None of these 35.4 V 30.4 V 38.74 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current can flow through a normally open push button switch as long as: None of these its contact remain open its contact remain open you are not pressing the button you are pressing the button None of these its contact remain open its contact remain open you are not pressing the button you are pressing the button ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for voltage in a series circuit? The total voltage is equal to the sum of the individual voltages in a series circuit The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is always less than the value of the smallest voltage None of these The total voltage in a series circuit is equal to the average value of the individual voltages The total voltage is equal to the sum of the individual voltages in a series circuit The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is always less than the value of the smallest voltage None of these The total voltage in a series circuit is equal to the average value of the individual voltages ANSWER DOWNLOAD EXAMIANS APP
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