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Thousand cells of emf E and internal resistance r are connected in series without any external resistance .Find the potential drop across 399 cells

Thousand cells of emf E and internal resistance r are connected in series without any external resistance .Find the potential drop across 399 cells

Question Image
Grade:12

1 Answers

Arun
25763 Points
3 years ago
I = 1000E/1000r
I = E/r
potential drop across 1 cell = E-Ir = E-(E/r)r
= 0
therefore , For 399 cells potential drop is 0.

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