In the circuit shown in the figure, a resistor with R=4200 Ω…

In the circuit shown in the figure, a resistor with R=4200 Ω is connected to a sinusoidal AC source. A segment of the voltage-time graph is displayed (note that time extends to infinity). Calculate the total electrical energy (in joules, J) dissipated by the resistor over a time interval of 60 seconds.    

A circuit is shown in the figure. C = 2.4×10-5 F. The AC sou…

A circuit is shown in the figure. C = 2.4×10-5 F. The AC source has a root-mean-square voltage Vrms = 100 V. When the AC source frequency is 60 Hz, the room-mean-square current in the circuit has its maximum value of 5 A. If the frequency of the AC source is changed to 90 Hz, what is the root-mean-square current in the circuit (unit in amperes, A)?