Imagine a circuit containing two cells of emf e1&e2 with internal resistance r1&r2 respectively.The cell with emf e1 has a voltmeter in parrallel.The total circuit has external resistance R. If the reading of voltmeter is zero, obtain the relation betN R,r1&r2.
hi.........the full solution is given below............. i think in this ques. e1 and e2 are equal dnoted as e oterwise in the relation there is also term of e1 and e2 exist..
I (currnt) = 2e/r1+r2+R
V (volt) =e -- (I) r1
we know that voltmeter is giving reading zero then
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