Question

tell me the expression for when cells are of different emf and internal resistance ​

Answer 1

Answer:

Explanation:

In series

E= E1 + E2 ..........En

r= r1 + r2 .............rn

In parallel

E= (E1r2 + E2r1) / (r1 + r2)

r= r1r2 / r1 + r2

Answer 2

Answer:

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I am ill

Otherwise I would have talked to you