EXAMIANS
The complex number 40 angle 55° is equivalent to
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What is the angular difference between +j4 and –j4?
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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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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 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, when the frequency and the resistance are halved, the impedance
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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 decreased, the impedance
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A 12 kΩ resistor is in series with a 0.02 μF capacitor across a 1.2 kHz ac source. If the current is expressed in polar form as I = 0.3 angle 0° mA, what is the source voltage expressed in polar form?
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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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