why is it important to maintain the potential difference across the ends of wire for flow of current?

Asked by abhigya chaudhary | 28th Mar, 2012, 04:02: PM

Expert Answer:

Only when there is a potential difference between two points, a current can flow. 
The potential difference, V,between two points in a circuitis defined as theamount of work done, W, when one coulomb of charge passes from one point to the other point.
The SI unit for potentialdifference isVolt, V

Answered by  | 28th Mar, 2012, 08:19: PM

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