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? 37.9Ω 14400Ω 3.7Ω 4800Ω 37.9Ω 14400Ω 3.7Ω 4800Ω ANSWER DOWNLOAD EXAMIANS APP
RC Circuits In a series RC circuit, when the frequency and the resistance are halved, the impedance cannot be determined without values doubles is halved is reduced to one-fourth cannot be determined without values doubles is halved is reduced to one-fourth 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 3.46 21.63 2.16 4.24 3.46 21.63 2.16 ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A positive angle of 30° is equivalent to a negative angle of –330° –180° –30° –60° –330° –180° –30° –60° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 2 kΩ resistor and a 0.002 μF capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is 84.5 mW 130 mW 845 mW 13 mW 84.5 mW 130 mW 845 mW 13 mW ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 12 kΩ resistor is in series with a 0.02 μF capacitor across a 1.2 kHz ac source. If the current is expressed in polar form as I = 0.3 angle 0° mA, what is the source voltage expressed in polar form? 0.411 V 45.6 V 411.3 V 4.11 V 0.411 V 45.6 V 411.3 V 4.11 V ANSWER DOWNLOAD EXAMIANS APP
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