If we have two nodes A and B and Vab is the potential difference between these n

If we have two nodes A and B and Vab is the potential difference between these nodes then which node is called reference node

a.node A

b.node B

c. Ground node

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If we have two nodes A and B and Vab is the potential difference between these nodes then which node..

Answer / saket

Vab is potential of node a with respect to b .. so b is taken as the reference

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