Electronic Principles What is the smallest number of polarities required for current flow? Two - a negative terminal and a positive terminal One - a negative terminal None of these Four - two negative and two positive Three - negative, positive and neutral terminals Two - a negative terminal and a positive terminal One - a negative terminal None of these Four - two negative and two positive Three - negative, positive and neutral terminals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? None of these Current lags the voltage through a resistor All of these Current and voltages are in phase through a resistor Current leads the voltage through a resistor None of these Current lags the voltage through a resistor All of these Current and voltages are in phase through a resistor Current leads the voltage through a resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? 26.6 degree 0 degree 180 degree None of these 90 degree 26.6 degree 0 degree 180 degree None of these 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: cuts the inductive reactance in half None of these multiplies the inductive reactance by 6.28 doubles the amount of inductive reactance has no effect on the inductive reactance cuts the inductive reactance in half None of these multiplies the inductive reactance by 6.28 doubles the amount of inductive reactance has no effect on the inductive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? An electron that has been freed from its parent atom An electron that has twice the amount of charge of a normal electron None of these An electron that costs nothing An electron that has no electrical charge An electron that has been freed from its parent atom An electron that has twice the amount of charge of a normal electron None of these An electron that costs nothing An electron that has no electrical charge ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RC circuit? None of these The voltage always has the same amplitude and phase for every part of the circuit The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage is greater than the sum of the voltages across the resistance and capacitance None of these The voltage always has the same amplitude and phase for every part of the circuit The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage is greater than the sum of the voltages across the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS