This problem has several parts. a) If a portable electronic device draws 1A current at a voltage of 2.5V, whit is the power requirement for this device? b) You have designed a fuel cell that delivers 1A at 0.5V. How many of your fuel cells are required to supply the above portable electronic device with its necessary voltage and current requirements? c) How are your fuel cells arranged? parallel or in-series d) You would like the portable electronic device to have an operating lifetime of 100h. Assuming 100% fuel utiiization, what is the minimum amount of H2 fuel (in grams) required