Two cells of equal e.m.f. and of internal resistances R1 and R2 { R2 > R1} are connected in series. On connecting this combination to an external resistance R, it is observed that the potential difference across the first cell becomes zero. The value of R will be - Study24x7
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19 May 2020 06:30 PM study24x7 study24x7

Two cells of equal e.m.f. and of internal resistances R1 and R2 { R2 > R1} are connected in series. On connecting this combination to an external resistance R, it is observed that the potential difference across the first cell becomes zero. The value of R will be

A

R1 + R2

B

R1 - R2

C

(R1 + R2)/2

D

(R1 - R2)/2

IIT Entrance NEET/Medical Class 12 (PCB)
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