A teacher attaches two balloons each to a stick. She charges each balloon and moves them a certain distance apart. She repeats the steps three more times with various arrangements. Which arrangement and charge combination represents the greatest electrical potential energy between the balloons?

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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