An action potential in the nerve fibre i...

An action potential in the nerve fibre is produced when positive and negative charges on the outside and the inside of the axon membrane are reversed, because

A

more potassium ions enter the axon as compared to sodium ions leaving it

B

more sodium ions enter the axon as compared to potassium ions leaving it

C

all potassium ions leave the axon

D

all sodium ions enter the axon

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The correct Answer is:

B

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