EXAMIANS
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 capacitor with 150Ω of capacitive reactance is across an ac source. The impedance, expressed in polar form, is
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In the complex plane, the number 4 + j3 is located in the
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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 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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When the frequency of the voltage applied to a series RC circuit is increased, the phase angle
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In the complex plane, the number 14 – j5 is located in the
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A 47Ω resistor and a capacitor with 150Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is
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When the frequency of the source voltage decreases, the impedance of a parallel RC circuit
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