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RC Circuits

RC Circuits
The complex number 6 + j6 is equivalent to

8.4845°
645°
8.4890°
3645°

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RC Circuits
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

4.6 mA
9.2 mA
92 mA
460 mA

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RC Circuits
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

130 mW
13 mW
84.5 mW
845 mW

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RC Circuits
A capacitor with 150Ω of capacitive reactance is across an ac source. The impedance, expressed in polar form, is

Z = 150 angle – 90° Ω
Z = 150 –90° Ω
Z = 150 angle 180° Ω
Z = 150

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

second quadrant
third quadrant
fourth quadrant
first quadrant

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RC Circuits
What is the value of the hypotenuse of a right triangle whose sides are 12 and 18?

21.63
2.16
3.46
4.24

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