EXAMIANS
The complex number 40 angle 55° is equivalent to
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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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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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In the complex plane, the number 4 + j3 is located in the
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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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When the frequency of the source voltage decreases, the impedance of a parallel RC circuit
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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 positive angle of 30° is equivalent to a negative angle of
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Point +4 on the complex plane is
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