RC Circuits In a series RC circuit, when the frequency and the resistance are halved, the impedance is reduced to one-fourth doubles cannot be determined without values is halved is reduced to one-fourth doubles cannot be determined without values is halved ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 47Ω resistor and a capacitor with 150Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is Z = 47Ω + j150Ω Z = 103Ω Z = 47Ω – j150Ω Z = 197Ω Z = 47Ω + j150Ω Z = 103Ω Z = 47Ω – j150Ω Z = 197Ω ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 47Ω resistor and a capacitor with a capacitive reactance of 120 are in series across an ac source. What is the circuit impedance, Z? 167Ω 12.9Ω 73Ω 129Ω 167Ω 12.9Ω 73Ω 129Ω 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 = 5XC R > XC R < XC R = XC R = 5XC R > XC R < XC R = XC ANSWER DOWNLOAD EXAMIANS APP
RC Circuits In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is 141 mA 100 mA 282 mA 200 mA 141 mA 100 mA 282 mA 200 mA 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 14400Ω 3.7Ω 37.9Ω 4800Ω 14400Ω 3.7Ω 37.9Ω ANSWER DOWNLOAD EXAMIANS APP
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