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n Identical cells each of emf E and internal resistance r are joined in series to form a closed circuit. One of the cell A is joined with reversed polarity . The potential differnce across A is?

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Q. n identical cells, each of emf

ε

and internal resistance

r

, are joined in series to form a closed circuit. One cell

A

is joined with reversed polarity. The potential difference across each cell, except

A

n

identical cells, each of emf

E

and internal resistance

r

, are joined in series to form a closed circuit. One of the cells is joined with reversed polarity. The potential difference across each cell, except the cell with the reversed polarity, is

\frac{2 (ρ - 1) E}{n}

ρ

is(integer only)

n

identical cells, each of emf

ε

and internal resistance

r

, are joined in series to form a close circuit. One cell

A

is joined with reversed polarity. The potential difference across each cell, except

A

n

identical cells, each of emf

ε

and internal resistance

r

, are joined in series to form a close circuit. One cell

A

is joined with reverse polarity. The potential difference across the terminal of

A

n

identical cells each

e m f

(E)

and internal resistance

(r)

are joined in series so as to form a closed circuit. The potential difference across any one cell is :

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