EXAMIANS
In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is
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Point +4 on the complex plane is
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A capacitor with 150Ω of capacitive reactance is across an ac source. The impedance, expressed in polar form, is
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A resistor and a capacitor are in series across a 20 V ac source. Circuit impedance is 4.33 k. Current flow in the circuit is
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The complex number 6 + j6 is equivalent to
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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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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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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
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What is the value of the hypotenuse of a right triangle whose sides are 12 and 18?
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For a certain load, the true power is 150 W and the reactive power is 125 VAR. The apparent power is
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