What is the potential difference between the plates of a 2.50-F capacitor that stores sufficient energy to operate a 75.0-Wlight bulb for one minute? Number UnitsReview Conceptual Example 7 as an aid in solving this problem. A portable electric heater uses 18.3 A of current. The manufacturer recommends that an extension cord attached to the heater receive no more than 2.50 W of power per meter of length. What is the smallest radius of copper (resistivity 1.72 x 10" (-m) wire that can be used in the extension cord? (Note: An extension cord contains two wires.) Number i UnitsA 150 coffee maker and a 130 frying pan are connected in series across a 120V source of voltage. A 210 bread maker is also connected across the 120V source and is in parallel with the series combination. Find the total current supplied by the source of voltage. Number n Units V A 5.50-//F and a 4.00-/F capacitor are connected in series across a 24.0-V battery. What voltage is required to charge a parallel combination of the two capacitors to the same total energy? Number i Units V