EXAMIANS
When the frequency of the source voltage decreases, the impedance of a parallel RC circuit
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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?
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When the frequency of the voltage applied to a series RC circuit is decreased, the impedance
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The complex number 40 angle 55° is equivalent to
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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?
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The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency
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Point +4 on the complex plane is
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In the complex plane, the number 14 – j5 is located in the
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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
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In a series RC circuit, when the frequency and the resistance are halved, the impedance
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