benavides (jjb2356) – homework 30 – Turner – (59130)
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001
10.0 points
Consider a series
RLC
circuit.
The applied
voltage has a maximum value of 150 V and
oscillates at a frequency of 56 Hz. The circuit
contains a capacitor whose capacitance can be
varied, a 920 Ω resistor, and a 5
.
7 H inductor.
Determine the value of the capacitor such
that the voltage across the capacitor is out of
phase with the applied voltage by 47
◦
, with
V
L
leading
V
max
.
Answer in units of
μ
F.
002
10.0 points
Consider a series
RLC
circuit.
The applied
voltage has a maximum value of 110 V and
oscillates at a frequency of 78 Hz. The circuit
contains an inductor whose inductance can be
varied, a 1100 Ω resistor, and a 1
μ
F capacitor.
Determine the value of the inductance such
that the voltage across the capacitor is out of
phase with the applied voltage by 38
◦
, with
V
max
leading
V
C
.
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 Spring '08
 Turner
 Work, Inductor, 90 percent, series RLC circuit, 86 %, 970 kW

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