Physics · Current Electricity
Two cells of same emf E but different internal resistances r1 and r2 are connected in series with an external resistance R. The value of resistance R, for which the potential difference across the second cell is zero, is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1r2
- 2r1
- 3r1 - r2
- 4r2 - r1✓
Correct answer
r2 - r1
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