Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 1590 Ohm 312 Ohm 690 Ohm less than 1 Ohm None of these 1590 Ohm 312 Ohm 690 Ohm less than 1 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely capacitive circuit? 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 Capacitive reactance provides the only opposition to current flow None of these 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 Capacitive reactance provides the only opposition to current flow None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Most AC power is obtained from: batteries oscillators None of these lightning generators batteries oscillators None of these lightning generators 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 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 another term for counter emf None of these Inductive reactance is an opposition to current flow in ac circuits 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 another term for counter emf None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Four - two negative and two positive Two - a negative terminal and a positive terminal Three - negative, positive and neutral terminals None of these One - a negative terminal Four - two negative and two positive Two - a negative terminal and a positive terminal Three - negative, positive and neutral terminals None of these One - a negative terminal ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? None of these 690 ohm 445 ohm 220 ohm 150 ohm None of these 690 ohm 445 ohm 220 ohm 150 ohm ANSWER DOWNLOAD EXAMIANS APP
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