RC Circuits When the frequency of the source voltage decreases, the impedance of a parallel RC circuit does not change decreases increases decreases to zero does not change decreases increases decreases to zero ANSWER DOWNLOAD EXAMIANS APP
RC Circuits In a series RC circuit, when the frequency and the resistance are halved, the impedance is halved doubles cannot be determined without values is reduced to one-fourth is halved doubles cannot be determined without values is reduced to one-fourth ANSWER DOWNLOAD EXAMIANS APP
RC Circuits An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist: R = XC R > XC R = 5XC R < XC R = XC R > XC R = 5XC R < XC ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 2 k resistor is in series with a 0.015 F capacitor across a 15 kHz ac source. What is the magnitude of the total impedance and the phase angle? 707 and θ = –19.5° 2121 and θ = –19.5° 734 and θ = –38.9° 73.4 and θ = –19.5° 707 and θ = –19.5° 2121 and θ = –19.5° 734 and θ = –38.9° 73.4 and θ = –19.5° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits What is the value of the hypotenuse of a right triangle whose sides are 12 and 18? 4.24 2.16 21.63 3.46 4.24 2.16 21.63 3.46 ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 120Ω resistor is in parallel with a capacitor with a capacitive reactance of 40 Ω. Both components are across a 12 V ac source. What is the magnitude of the total impedance? 4800Ω 3.7Ω 14400Ω 37.9Ω 4800Ω 3.7Ω 14400Ω 37.9Ω ANSWER DOWNLOAD EXAMIANS APP
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