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for a cell, the graph between the p.d. (...

for a cell, the graph between the p.d. (V) across the terminals of the cell ad te current I drawn from the cell is shown in the fig. the emf and the internal resistance of the cell is E and r respectively.

A

`E=2V,r=0.5Omega`

B

`E=2V,r=0.4Omega`

C

`Egt2,r=0.5Omega`

D

`Egt2V,r=0.4Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`V=E-ir`
`i=0,V=E=2V`
`V=0,r=(E)/(i)=0.4Omega`
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