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RC Circuits

RC Circuits
The complex number 40 angle 55° is equivalent to

22.94 + j32.76
40 + j40
45.88 + j65.52
55 + j55

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RC Circuits
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?

4.11 V
45.6 V
411.3 V
0.411 V

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RC Circuits
In the complex plane, the number 4 + j3 is located in the

third quadrant
first quadrant
fourth quadrant
second quadrant

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RC Circuits
The complex number 6 + j6 is equivalent to

645°
8.4890°
3645°
8.4845°

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RC Circuits
A 6 kHz sinusoidal voltage is applied to a series RC circuit. The frequency of the voltage across the resistor is

12 kHz
6 kHz
18 kHz
0 Hz

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RC Circuits
What is the angular difference between +j4 and –j4?

270°
90°
30°
180°

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