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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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Related Question
RC Circuits
When the frequency of the voltage applied to a series RC circuit is decreased, the impedance
decreases
remains the same
doubles
increases
decreases
remains the same
doubles
increases
Answer
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RC Circuits
What is the angular difference between +j4 and –j4?
90°
30°
180°
270°
90°
30°
180°
270°
Answer
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RC Circuits
A 47Ω resistor and a capacitor with 150Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is
Z = 197Ω
Z = 103Ω
Z = 47Ω + j150Ω
Z = 47Ω – j150Ω
Z = 197Ω
Z = 103Ω
Z = 47Ω + j150Ω
Z = 47Ω – j150Ω
Answer
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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
130 mW
13 mW
84.5 mW
845 mW
Answer
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RC Circuits
When the frequency of the voltage applied to a series RC circuit is increased, the phase angle
increases
becomes erratic
decreases
remains the same
increases
becomes erratic
decreases
remains the same
Answer
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