Electronic Principles A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff? None of these 60 Ohm 10 Ohm 100 Ohm or more 50 Ohm None of these 60 Ohm 10 Ohm 100 Ohm or more 50 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these Current leads the voltage through a resistor All of these Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these Current leads the voltage through a resistor All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.6 A 0.3 A 0.2 A 0.4 A None of these 0.6 A 0.3 A 0.2 A 0.4 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for resistance in a parallel circuit? The total resistance is equal to the sum of the individual resistances in a parallel circuit. The total resistance of a parallel circuit is always less than the value of the smallest resistance None of these The total resistance in a parallel circuit is equal to the average value of the individual resistances The total resistance of a parallel circuit is equal to the total voltage The total resistance is equal to the sum of the individual resistances in a parallel circuit. The total resistance of a parallel circuit is always less than the value of the smallest resistance None of these The total resistance in a parallel circuit is equal to the average value of the individual resistances The total resistance of a parallel circuit is equal to the total voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely capacitive circuit? The ac voltage leads the current by 90 degree Combinations of resistance and capacitive reactance provide any opposition to current flow None of these Capacitive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow The ac voltage leads the current by 90 degree Combinations of resistance and capacitive reactance provide any opposition to current flow None of these Capacitive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely inductive circuit: cuts the current through the inductors one-half doubles the amount of current through the inductors increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit None of these has no effect on the current through the inductors cuts the current through the inductors one-half doubles the amount of current through the inductors increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit None of these has no effect on the current through the inductors ANSWER DOWNLOAD EXAMIANS APP
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