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When two identical cells are connected e...

When two identical cells are connected either in series or in parallel across a 4 ohm resistor, they send the same current through it. The internal resistance of the cell in ohm is

A

2 ohm

B

1.2 ohm

C

12 ohm

D

21 ohm

Text Solution

Verified by Experts

The correct Answer is:
A
`i_(S)= i_(P), (nE)/(R + nr) =E/(R + r/n)`
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