When the charge is negative inside an axon the neuron is said to have a resting potential ( D )
When the charge inside an axon is negative while the charge on the outside is positive the neuron will have a resting potential because when the inside of axon has a negative charge the neuron will be negative. ( at rest ).
Therefore when a neuron is at rest ( having a negative charge ) the voltage it posses is called the resting membrane potential Which is ≈ 70 millivolts depending on the neuron
Hence we can conclude that When the charge is negative inside an axon the neuron is said to have a resting potential.
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