EXAMIANS
An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist:
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A 6 kHz sinusoidal voltage is applied to a series RC circuit. The frequency of the voltage across the resistor is
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In the complex plane, the number 14 – j5 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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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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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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When the frequency of the voltage applied to a series RC circuit is increased, the phase angle
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The complex number 6 + j6 is equivalent to
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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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