Electronic Principles Which one of the following statements most accurately describes the nature of inductive reactance? None of these Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is another term for counter emf Inductive reactance is a force that tends to overcome the effects of counter emf Inductive reactance is an opposition to current flow in ac circuits None of these Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is another term for counter emf Inductive reactance is a force that tends to overcome the effects of counter emf Inductive reactance is an opposition to current flow in ac circuits ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 micro A is: None of these one-millionth of an ampere 10000A 1000 A one million amperes None of these one-millionth of an ampere 10000A 1000 A one million amperes ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Waveforms are graphs that show: amplitude on the vertical axis and the passage of time on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis None of these the passage of time on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and frequency on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis None of these the passage of time on the vertical axis and amplitude on the horizontal axis amplitude on the vertical axis and frequency on the horizontal axis ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? None of these Two - a negative terminal and a positive terminal Three - negative, positive and neutral terminals Four - two negative and two positive One - a negative terminal None of these Two - a negative terminal and a positive terminal Three - negative, positive and neutral terminals Four - two negative and two positive One - a negative terminal ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? None of these 0.25 4 180 0.5 None of these 0.25 4 180 0.5 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: cuts the inductive reactance in half doubles the amount of inductive reactance has no effect on the inductive reactance None of these multiplies the inductive reactance by 6.28 cuts the inductive reactance in half doubles the amount of inductive reactance has no effect on the inductive reactance None of these multiplies the inductive reactance by 6.28 ANSWER DOWNLOAD EXAMIANS APP
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