Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 40 V 0 V 60 V None of these 36 V 40 V 0 V 60 V None of these 36 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? Current leads the voltage through a resistor All of these Current lags the voltage through a resistor None of these Current and voltages are in phase through a resistor Current leads the voltage through a resistor All of these Current lags the voltage through a resistor None of these Current and voltages are in phase through a resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total capacitive reactance of a parallel capacitor circuit is: equal to the sum of the individual capacitive-reactance values None of these less than the capacitance value of the smallest capacitor equal to the source voltage divided by total current equal to the sum of the individual capacitance values equal to the sum of the individual capacitive-reactance values None of these less than the capacitance value of the smallest capacitor equal to the source voltage divided by total current equal to the sum of the individual capacitance values ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: None of these frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf None of these frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? None of these 3 43891 2 43922 None of these 3 43891 2 43922 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: doubles the amount of inductive reactance None of these has no effect on the inductive reactance multiplies the inductive reactance by 6.28 cuts the inductive reactance in half doubles the amount of inductive reactance None of these has no effect on the inductive reactance multiplies the inductive reactance by 6.28 cuts the inductive reactance in half ANSWER DOWNLOAD EXAMIANS APP
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