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Q.

Both terminals of a battery of Emf “E” and internal resistance “r” are grounded as shown. Select the correct alternative (s)

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a

Current through the battery is zero

b

Potential difference across A and B is Zero

c

Potential difference across A and B is E.

d

Current through the battery is Er

answer is A, D.

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Detailed Solution

Since both A and B are grounded, they will be at zero potential. 

Therefore, Potential difference across A and B is Zero.

Current through battery is 

V=E-ir = 0

⇒i=Er

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