A circuit is constructed with an AC generator, a resistor, capacitor and inductor as shown. The generator voltage varies in time as ε =Va - Vb = εmsinωt, where εm = 120 V and ω = 318 radians/second. The inductance L = 384 mH. The values for the capacitance C and the resistance R are unkown. What is known is that the current in the circuit leads the voltage across the generator by φ = 35 degrees and the average power delivered to the circuit by the generator is Pavg = 111 W.
2)
What is R, the value of the resistance of the circuit?
Ω
3)
What is C, the value of the capacitance of the circuit?
μF
4)
The value of ω is now changed, keeping all other circuit parameters constant, until resonance is reached. How was ω changed?
ω was decreased
ω was increased
5)
What is the average power delivered to the circuit when it is in resonance?
W
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