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  • The figure shows a plot of terminal voltage ‘V’ versus the current ‘i’ of a given cell. Calculate from the graph (a) emf of the cell and (b) internal resistance of the cell. <img src="data:image/png;base64,iVBORw0KGgoAAAA

The figure shows a plot of terminal voltage ‘V’ versus the current ‘i’ of a given cell. Calculate from the graph (a) emf of the cell and (b) internal resistance of the cell.

 

 
 
 
 
 

Answers (1)

emf  E = 6V
internal resistance
r= \frac{E-V}{I}
when V= 4V, I= 1A
\therefore r= \frac{6-4}{1}
r= 2\, \Omega

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Safeer PP

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