EXAMIANS
What is the angular difference between +j4 and –j4?
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In a series RC circuit, when the frequency and the resistance are halved, the impedance
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A positive angle of 30° is equivalent to a negative angle of
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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 increased, the phase angle
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Point +4 on the complex plane 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 470 resistor and a 0.2 F capacitor are in parallel across a 2.5 kHz ac source. The admittance, Y, in rectangular form, is
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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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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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