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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?
0.411 V
411.3 V
45.6 V
4.11 V
0.411 V
411.3 V
45.6 V
4.11 V
Answer
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Related Question
RC Circuits
In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is
3 V
1.9 V
27 V
19.2 V
3 V
1.9 V
27 V
19.2 V
Answer
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RC Circuits
The complex number 40 angle 55° is equivalent to
55 + j55
45.88 + j65.52
22.94 + j32.76
40 + j40
55 + j55
45.88 + j65.52
22.94 + j32.76
40 + j40
Answer
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RC Circuits
A positive angle of 30° is equivalent to a negative angle of
–180°
–30°
–330°
–60°
–180°
–30°
–330°
–60°
Answer
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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
212
318.3
2.12 mS + j3.14 mS
3.14 mS + j2.12 mS
212
318.3
2.12 mS + j3.14 mS
3.14 mS + j2.12 mS
Answer
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RC Circuits
When the frequency of the voltage applied to a series RC circuit is increased, the phase angle
decreases
remains the same
becomes erratic
increases
decreases
remains the same
becomes erratic
increases
Answer
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