Why is e.m.f greater than potential difference in a potentiometer??
Asked by | 23rd Jan, 2009, 02:59: PM
V = E -Ir where r is the internal resistance of the cell.
The emf is greater than the terminal potential difference of a cell because a potential drop takes place due to the internal resistance of the cell.
Answered by | 27th Jan, 2009, 03:55: PM
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