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In a circuit a cell with internal resist...

In a circuit a cell with internal resistance r is connected to an external resistance R. The condition for the maximum current that drawn from the cell is

A

R = r

B

`R lt r`

C

`R gt r`

D

`R = r//2`

Text Solution

Verified by Experts

The correct Answer is:
B
`I = E/(r + R)`
For maximum current `R to 0`
i.e. `(R lt r)`
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