The average power (Pavg) is expressed as?
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The average power dissipated by a resistor connected to a sinusoidal emf is 5.0 W.
a) What is PavgĀ if the resistance R is doubled?
b) What is PavgĀ if the peak emfĀ Ā is doubled?
c) What is Pavg if both are doubled simultaneously?
A circuit is constructed with an AC generator, a resistor, capacitor, and inductor as shown. The generator voltage varies in time E=Va-Vb=EmsinĻt, where EmĀ = 120V andĀ Ļ=472 radian/second. The inductance L =336mH. The value for the capacitance C and the resistance R is unknown. What is known is that the current in the circuit leads the voltage across the generator byĀ Ļ=55Ā° and the average power delivered to the circuit by the generator is Pavg=147W.
what is Imax, the amplitude of the current oscillations in the circuit?
A circuit consists of a resistor (resistanceĀ R), inductor (inductanceĀ L), and capacitor (capacitanceĀ C) connected in series with an AC source supplying sinusoidal voltageĀ E0 sin(Ļt). Assume that all circuit elements are ideal, so that the only resistance in the circuit is due to the resistor. Also assume thatĀ ĻĀ is the resonant frequency of the circuit.
What is the average powerĀ Pavg supplied by the voltage source?
Express your answer in terms of any or all of the following quantities:Ā V0,Ā C,Ā L, andĀ R.
Ā