Current Electricity 2 Question 23

23. Two batteries of different emfs and different internal resistances are connected as shown. The voltage across AB in volt is

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Solution:

  1. VAB= Equivalent emf of two batteries in parallel.

=E1/r1+E2/r21/r1+1/r2=(6/1)+(3/2)(1/1)+(1/2)=5V

Answer is 5 .



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