EXAMIANS
When the frequency of the voltage applied to a series RC circuit is increased, the phase angle
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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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What is the value of the hypotenuse of a right triangle whose sides are 12 and 18?
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In a series RC circuit, when the frequency and the resistance are halved, the impedance
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In the complex plane, the number 4 + j3 is located in the
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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 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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A positive angle of 30° is equivalent to a negative angle of
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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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