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A battery consists of a variable number ...

A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C
`I=(n epsi)/(nr)=(epsi)/(r)`
So I is independent of n and I is constant
`therefore`
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