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RC Circuits
What is the value of the hypotenuse of a right triangle whose sides are 12 and 18?
21.63
3.46
4.24
2.16
21.63
3.46
4.24
2.16
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
doubles
decreases
remains the same
increases
doubles
decreases
remains the same
increases
Answer
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RC Circuits
In a series RC circuit, when the frequency and the resistance are halved, the impedance
is reduced to one-fourth
cannot be determined without values
is halved
doubles
is reduced to one-fourth
cannot be determined without values
is halved
doubles
Answer
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RC Circuits
A 2 k resistor is in series with a 0.015 F capacitor across a 15 kHz ac source. What is the magnitude of the total impedance and the phase angle?
73.4 and θ = –19.5°
707 and θ = –19.5°
2121 and θ = –19.5°
734 and θ = –38.9°
73.4 and θ = –19.5°
707 and θ = –19.5°
2121 and θ = –19.5°
734 and θ = –38.9°
Answer
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RC Circuits
The complex number 40 angle 55° is equivalent to
55 + j55
40 + j40
22.94 + j32.76
45.88 + j65.52
55 + j55
40 + j40
22.94 + j32.76
45.88 + j65.52
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
73Ω
167Ω
12.9Ω
129Ω
73Ω
167Ω
12.9Ω
Answer
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