Two parallel plate capacitors are identical, except that one of them is empty and the other contains a material with a dielectric constant of 4.2 in the space between the plates. The empty capacitor is connected between the terminals of an ac generator that has a fixed frequency and rms voltage. The generator delivers a current of 0.22 A. What current does the generator deliver after the other capacitor is connected in parallel with the first one?

26. At time r=0, the voltage across a 102 resistor connected to an AC voltage source v(t) = 6V cos(2r(50HZ)t) is 6V. What is the current through the resistor 0.1 seconds later? A. 0A %3D B. 0.1A C. 0.6A D. 1A E. 6A

A capacitor is connected across the terminals of an ac generator that has a frequency of 360 Hz and supplies a voltage of 34 V. When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.30 A. Find the capacitance of the second capacitor. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise.

A 66.0-μF capacitor is connected to a generator operating at a low frequency. The rms voltage of the generator is 4.60 V and is constant. A fuse in series with the capacitor has negligible resistance and will burn out when the rms current reaches 20.0 A. As the generator frequency is increased, at what frequency will the fuse burn out?

The figure shows the voltage across, and the current through, a resistor that is connected to an AC voltage source. (a) Find the resistance and the average power dissipated by the resistor. (b) How many times per second does the power dissipated by the resistor reach its maximum value? (c) Draw a graph of the power dissipated by the resistor versus time, and a graph of the power dissipated by the resistor versus voltage across the resistor..

A capacitor (capacitance C₁) is connected across the terminals of an ac generator. Without changing the voltage or frequency of the generator, a second capacitor (capacitance C2) is added in series with the first one. As a result, the current delivered by the generator decreases by a factor of 5.00. Suppose the second capacitor had been added in parallel with the first one, instead of in series. By what factor would the current delivered by the generator have increased? Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise.

An RLC circuit consists of a 48 Ω resistor, a 200 μF capacitor, and an inductor. The rms current is 2.5 A when the circuit is connected to a 120 V, 60 Hz outlet. What is the inductance?