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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?

4.24
3.46
21.63
2.16

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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

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

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RC Circuits
The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency

must be decreased
must be increased
has no effect
is held constant

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RC Circuits
When the frequency of the voltage applied to a series RC circuit is increased, the phase angle

becomes erratic
increases
remains the same
decreases

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

first quadrant
third quadrant
fourth quadrant
second quadrant

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RC Circuits
In the complex plane, the number 14 – j5 is located in the

fourth quadrant
first quadrant
third quadrant
second quadrant

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