In the series RLC circuit of problem 1 the resistor is replaced with the higher available value of 68 KOhm. The circuit is driven in forced oscillation regime up to a frequency of 200 KHz. A resonance is observed at a frequency of the order of 160 KHz. How would you explain this result? What combinations of capacitor / inductor values would produce a resonance at that frequency, and what parts of the setup are possible candidates for effective reactance elements at that frequency?

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.