Multiple-Concept Example 3 reviews some of the basic ideas that are pertinent to this problem. A circuit consists of a 243-a resistor and a 0.269- H inductor. These two elements are connected in series across a generator that has a frequency of 80.5 Hz and a voltage of 312 V. (a) What is the current in the circuit? (b) Determine the phase angle between the current and the voltage of the generator. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise. (a) Number (b) Number i Units Units <>>>

In an LC circuit, what determines the frequency and the amplitude of the energy oscillations in either the inductor or capacitor?

Check Your Understanding In the circuit of Figure 15.11, L=2.0103H,C=5.0104F , and R=40 (a) What is the resonant frequency? (b) What Is the Impedance of the circuit at resonance? (c) If the voltage amplitude is 10 V, what is i(t) at resonance? (d) The frequency of the AC generator is now changed to 200 Hz. Calculate the phase difference between the current and the emf of the generator. The ac circuit shown in Figure 15.11, called an RLC series circuit, is a series combination of a resistor, capacitor, and inductor connected across an ac source. It produces an emf of Figure 15.11 (a) An RLC series circuit, (b) A comparison of the generator output voltage and the current the value of the phase difference depends on the values of R, C, and L.

An ac source of voltage amplitude 10 V delivers electric energy at a rate of 0.80 W when its current output is 2.5 A. What is the phase angle between the emf and the current?

At s1iat frequency is the reactance of a 20F capacitor equal to that of a 10-mH inductor?

For the cucu3t shown below, what are (a) the total impedance and (b) the phase angle between the current and the emf? (C) Write, an expression for i(t).

Do Kirchhoff’s rules apply to circuits that contain inductors and Capacitors?

What is the self-inductance of an LC circuit that oscillates at 60 Hz 1ien the capacitance is 10 F ?

When a camera uses a flash, a fully charged capacitor discharges through an inductor. In what time must the 0.100-A current through a 2.00-mH inductor be switched on or off to induce a 500-V emf?

At 1000 Hz, the reactance of a 5.0-mH inductor is equal to the reactance of a particular capacitor. What is the capacitance of the capacitor?