An electric space heater contains two identical resistive heating elements. When a single element is connected directly across an ideal \(120\text{ V}\) power supply, it dissipates a rated power of \(1200\text{ W}\). To operate the heater at a lower setting, the two elements are connected in series with each other. This series combination is then connected to the \(120\text{ V}\) power supply using an extension cord that adds a total line resistance of \(6.0\text{ }\Omega\) to the circuit. What is the total operating current drawn from the power supply when the heater operates at this lower setting?