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AC Theory Quiz 3

QuestionAnswer
Referring to the formula XL = 2nfL, if f decreases XL___________ and if L increases XL ____________ decreases/increases
If a circuit contains ________ the current and applied voltage will always be in phase only resistance
What is the current flow in a circuit that has a 50 millihenry coil connected to a 60 Hz, 240 volt source? B 12.7 (I = E/R)
Inductive reactance is the induction of _______ that opposes ________ in a coil voltage/current flow (ELI the ICE man)
VARs represents the product of volts and amps that are ______ out of phase with each other 90 degrees
An electrical measurement called VARs is used to measure _______ power reactive
The ______ of the angle theta in a power triangle is also the power factor tangent
The angular displacement by which the voltage and current are out of phase with each other is referred to as angle theta
In a parallel RL circuit the _______ can be computed by multiplying the line voltage by the line current true power
In a parallel RC circuit that has a resistance of 470 ohms, and a reactance of 330 ohms. Determine the impedance of the circuit 270 ohms
In a parallel RL circuit with an applied voltage of 240 volts draws 5 amperes. The power factor is 70%. What is the true power? 1,200 VA
The ratio of a coil's inductive reactance to resistance is referred to as the coil's quality
Inductive reactance in a coil is directly proportional to _______ and _______ inductance/frequency
How much current flows in a circuit with a supply voltage of 120 volts and an inductive reactance of 30 ohms? 4 amps
Created by: apolakovich
 

 



Voices

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