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categoryالهندسة الكهربائية
schoolبكالوريوس
event_available2026-07-15
السؤال
Transcribed Image Text:
An RLC series circuit contains two identical capacitors, one resistor, one inductor, and two switches. The
amplitude of the voltage source is 24 V, the oscillation frequency is 60.0 Hz and the resistor has a
resistance of 75 2.
a)
b)
c)
d)
e)
f)
When switch S₁ is closed and switch Sz is open, the source voltage leads the current in the
circuit by 15°. Draw a phasor diagram for this case, showing the phasor for the current through the
circuit, the phasor for the voltage across the circuit, and their relative orientation with respect to
each other. Clearly mark the phase angle.
Write the equation that shows the connection between the phase angle, resistance,
capacitance, and inductance for this scenario.
When both switches are open, the current in the circuit leads the source voltage by 24°.
Draw a phasor diagram for this case, showing the phasor for the current through the circuit, the
phasor for the voltage across the circuit, and their relative orientation with respect to each other.
Clearly mark the phase angle.
Write the equation that shows the connection between the phase angle, resistance,
capacitance, and inductance for this scenario.
circuit.
Use the equations from parts (b) and (d) to find the capacitance and inductance for this
Find the amplitude of the current in the circuit when both switches are closed.
L
R
C
S₁
C
Sq
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