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RC Circuits

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

21.63
2.16
4.24
3.46

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

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

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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

18 kHz
12 kHz
6 kHz
0 Hz

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RC Circuits
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

2.12 mS + j3.14 mS
318.3
212
3.14 mS + j2.12 mS

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RC Circuits
In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is

200 mA
282 mA
141 mA
100 mA

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

first quadrant
third quadrant
second quadrant
fourth quadrant

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