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Connections in Parallel

five cell of ...

Question

five cell of emf E and internal resistance r send the same amount of current through an external resistance E whether the cells are connected in parallel or in series. Then the ratio (R/r) is?

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Solution

$T h e c e l l s o f i n t e r n a l r e s i s \tan c e r a r e c o n n e c t e d i n p a r a l l e l . T h e r a t i o o f \frac{R}{r} = \frac{I R}{I r} = \frac{V}{V} = 1 o r t h e R a t i o i s 1 : 1 .$

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