Suppose that we are designing a cardiac pacemaker circuit. the circuit is required to deliver pulses of 1ms duration to the heart, which can be modeled as a 500 ohm resistance. the peak amplitude of the pulses is required to be 5 v. however, the battery delivers only 2.5 v. therefore, we decide to charge two equal value capacitors in parallel from the 2.5v battery and then switch the capacitors in series with the heart during the 1ms pulse. what is the minimum value of the capacitances required so the output pulse amplitude remains between 4.9 v and 5.0 v throughout its 1ms duration? if the pulses occur once every second, what is the average current drain from the battery? use approximate calculations, assuming constant current during the output pulse. find the ampere-hour rating of the battery so it lasts for five years. (problem from hambley, electrical engineering: principles & applications)