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RC Circuits
For a certain load, the true power is 150 W and the reactive power is 125 VAR. The apparent power is
25 W
275 W
195.2 W
19.52 W
25 W
275 W
195.2 W
19.52 W
Answer
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Related Question
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?
45.6 V
411.3 V
0.411 V
4.11 V
45.6 V
411.3 V
0.411 V
4.11 V
Answer
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RC Circuits
A 47Ω resistor and a capacitor with a capacitive reactance of 120 are in series across an ac source. What is the circuit impedance, Z?
129Ω
167Ω
73Ω
12.9Ω
129Ω
167Ω
73Ω
12.9Ω
Answer
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RC Circuits
An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist:
R < XC
R = 5XC
R > XC
R = XC
R < XC
R = 5XC
R > XC
R = XC
Answer
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RC Circuits
The complex number 40 angle 55° is equivalent to
45.88 + j65.52
22.94 + j32.76
55 + j55
40 + j40
45.88 + j65.52
22.94 + j32.76
55 + j55
40 + j40
Answer
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RC Circuits
In the complex plane, the number 14 – j5 is located in the
fourth quadrant
third quadrant
second quadrant
first quadrant
fourth quadrant
third quadrant
second quadrant
first quadrant
Answer
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