Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 6 None of these 81 9 85 6 None of these 81 9 85 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately describes the nature of inductive reactance? Inductive reactance is an opposition to current flow in ac circuits None of these 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 dc circuits Inductive reactance is an opposition to current flow in ac circuits None of these 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 dc circuits ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of less than 10 Ohm None of these More than 100 k Ohm At least 10 Ohm Less than 100 k Ohm less than 10 Ohm None of these More than 100 k Ohm At least 10 Ohm Less than 100 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff? 60 Ohm 50 Ohm None of these 10 Ohm 100 Ohm or more 60 Ohm 50 Ohm None of these 10 Ohm 100 Ohm or more ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half has no effect on the inductance None of these multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half has no effect on the inductance None of these 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: Twice the primary current None of these Same as the primary current One-half the primary current No more than 10% less than the primary current Twice the primary current None of these Same as the primary current One-half the primary current No more than 10% less than the primary current ANSWER DOWNLOAD EXAMIANS APP
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