Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 312 Ohm None of these 690 Ohm 1590 Ohm less than 1 Ohm 312 Ohm None of these 690 Ohm 1590 Ohm less than 1 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a parallel RLC circuit: is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always decreases as the applied frequency increases None of these is maximum at the resonant frequency always increases as the applied frequency increases is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always decreases as the applied frequency increases None of these is maximum at the resonant frequency always increases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? None of these 0.41666666666667 0.955 A 0.02 A 2.02 A None of these 0.41666666666667 0.955 A 0.02 A 2.02 A 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? 0.3 A None of these 0.6 A 0.4 A 0.2 A 0.3 A None of these 0.6 A 0.4 A 0.2 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Inductive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow None of these Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree Inductive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow None of these Combinations of resistance and inductive reactance provide any opposition to current flow The ac voltage lags the current by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of More than 100 k Ohm less than 10 Ohm Less than 100 k Ohm None of these At least 10 Ohm More than 100 k Ohm less than 10 Ohm Less than 100 k Ohm None of these At least 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
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